Here is an interesting question: is this Seattle's final year to make the SB with their current team? They have, I think 8, starters in their final contract year and it looks like a few who just extended or signed contracts aren't happy (Kam is threatening to miss training camp).
Interesting question. Not all starters are of similar value. So let's look at what those lost starters will be.
Cap Situation: 2016 Seattle has $115mm in contracts. 2017 $105mm. This includes all the big names -- Sherman, Thomas, Chancellor, Carry Williams (free agent), Bennett, Avril, KJ Wright, Lynch, Graham, etc.
Cap estimates are $155mm in 2016, $165mm in 2017. So Seattle will have to fit everyone under / pay their own / sign free agents $40mm for 2016 and $60mm in 2017.
The reality is they cannot keep everyone. At some point you need to replace quality starters who are worth $4mm-$7mm with cheaper talent. They did that with LG Carpenter and WR Tate and will almost certainly do that with OLB Bruce Irvin.
2017 Does NOT include these notable starters:
(OFF) QB Wilson, Baldwin, Kearse, or OL Okung, Sweezy, or Bailey.
(DEF) MLB Wagner, OLB Irvin, DT Mebane, DT Hill.
So can they fit all these guys in? Irvin and Mebane are gone IMO. Kearse, too and maybe Baldwin. Sweezy has played too well to keep (his replacement is now on the roster). Okung, if not healthy or wanting too much, is gone.
But Seattle will also have to figure out are they keeping TE Willson, RB Michael, CB Simon, CB Lane, etc. on top of Wilson and Wagner plus an eye toward their young guys: WR Richardson, WR Lockett, RT Britt, DT Hill, etc.
Looking at the players I will denote contract as 'YY (so if the contract ends 2015, written as '15)
OFFENSE:
QB: Wilson - '15, can be franchised 16, 17
RB:
Lynch - '17* / Turban - '15 / CMike - '16
FB: Coleman - '17
TE: Graham - '17 / Willson - '17
WR: Baldwin - '16 / Kearse - '15 / Richardson - '17 / Matthews - '17 / Norwood - '17 / Tyler Lockett (R) - '18
OL: RT Britt - '17 / LT Okung - '15 / RG Sweezy - '15 / LG Bailey - '16 / C Lewis - '17 + 3 rookies and other young backups
Lynch is an odd one. If they cut him after '15 he has a $5mm cap hit. But if he is on the roster in '16 his cap is $11.5mm. If he is a stud in 2015 they will keep him and he gets a $9mm base plus $2.5mm prorated bonus. That should keep him happy. Cutting him ($5mm) plus replacing him ($4mm?) only saves $2.5mm which may not be worth moving on if he is playing well. In 2017 he has a roster bonus of $3mm. If cut a $2.5mm cap penalty. The base is $7mm with a $12.5mm cap hit -- very unlikely they will keep him at that number as the cost to cut ($2.5mm) and to sign someone else ($4mm?) will a lot cheaper.
DEFENSE:
DT: Mebane - '15 / Bennett - '17 / Hill - '16 / Rubin (FA) - '15 / McDaniel - 15
DE: Avril - '18 / Marsh - '17 / Clark (R) - '18
OLB: Wright - '18 / Irvin - '15 / KP Lewis - '17
MLB: Wagner - '15
CB: Sherman - '18 / Williams (FA) - '17 / Lane - '15 / Simon - '16 / Burley - '17 + young guys
S: Thomas - '17 / Chancellor - '17
The Carry Williams signing was driven by injuries. They may like Williams but not at the $7mm guaranteed they are paying him. The contract is constructed 3 year $18mm and designed to cut him after this year with a $2.4mm hit. With Sherman, Simon, and Lane all injured at CB and losing Byron Maxwell (2014) and Browner (2013) the cornerback factory hit a snag. That is $7mm I am confident they wanted to spend elsewhere as they have tried to save big money by producing their own DBs.
Just as important as when contracts end is when they were signed. Someone who signed in 2012 (like Lynch last year before the rework) or Chancellor in 2013 have more basis for holding out than someone like Bennett who signed in 2014!
Before '10: Okung (R)
Before '11: Mebane
Before '13: Chancellor
Before '14: Bennett, Graham (Saints), Thomas, Sherman, Baldwin, McDaniel
Before '15: Avril, Wright, Lynch, (FA) Williams
Summary:
Assuming Wilson and Wagner are signed Seattle is not primed to lose anyone significant in 2016 or 2017.
The biggest losses will be:
Okung -- Huge loss as he is a Top 10 LT. When he plays healthy. The problem is he isn't healthy often (only 2012 which ironically was Wilson's best year in the pocket!) and worse often cannot play. He is below average when he plays hurt. Seattle needs to replace him but then again they are paying big money for someone who is always hurt.
Irvin -- Drafted to be a speed DE but instead got a solid Sam LB. They didn't give him a 5th year option because they didn't see paying $7mm for a good Sam who doesn't get to the QB often. He is VERY talented but Wagner is a fantastic MLB who can play in Nickel and Dime. Wright is also good in coverage. I would love to keep Irvin but it looks like they chose Wright (I would have chosen Irvin personally) because he is good in coverage and can play solid MLB if Wagner is hurt. Plus KP Lewis is a young playmaker who can fill the Irvin void.
Mebane -- Mebane is getting older (30) and Seattle tends to walk away from such. It hurt losing him as he is good against the run but offers nothing against the pass anymore. Coming off a serious injury. Seattle saw Kam and Wagner are more important to run stopping than Mebane. Big, experienced interior run stoppers can be had on the cheap in the off season. Look for Seattle to keep Hill (young with some pass rush skills) and sign another Rubin-type player. See: Seattle cutting Clemons, Red Bryant.
Sweezy -- Outplayed his value. Seattle likes young, athletic, CHEAP lineman for Cable's zone scheme. Sweezy is a converted DT who is finally worth playing. Better than Carpenter (lost after 2014) or Giacomini (lost after 2013), both who the Jets are paying about $4.5mm year, Seattle won't pay $4mm+ for Sweezy. They drafted obvious replacements for both Guards and Center.
Kearse -- He is cheap this year at just over $2mm for the tender. But his blocking is inconsistent (high effort guy who makes mistakes) and his hands are very inconsistent. Will make circus catches / highlight plays (2013 NFCCG, 2013 SB, 2014 NFC Div, 2014 NFCCG, 2014 SB) but regularly has killer drops, misses tackles, and makes mistakes. He dropped a game killing pass from Wilson in the 4th quarter of the SB (up 10 the huge big first down deep into NE territory would have changed the game completely), he had poor technique on Browner which allowed Butler to make a break for the ball, he let 2 balls bounce UP off his hands in the NFCCG against GB that lead to INTs and then failed to make a play on a ball caught in the wind, allowing the defender to get the INT (Lockette was in a similar situation against Denver and was smart--took the PI on Talib to prevent the turnover--Kearse just lacks in this area). He isn't quick, his routes are only OK, and he fails to get separation.
In short: he is a great #4, ok #3, should be no ones #2. He is solid on special teams as a gunner. There is a chance he won't make the 2015 Hawks. Matthews is being given the chance to start. Rookie Tyler Lockett is a Baldwin clone but with better routes and quicks (looks like a physical copy of... gulp... Antonio Brown! ... I can only hope he is 1/2 as good). Norwood, in his second year, has WAY better hands and if healthy is a bigger, faster, better route runner. If Richardson, if he can get healthy from the ACL, has fantastic hands, good route running, top tier speed (before injury), can return, and is quick. Seattle can use Kearse in 2015 but he won't be missed in 2016.
Lane -- Seattle is thin at Nickel Corner. But they are bolstering the position. They drafted Tye Smith, traded for Burley last year, picked up 30yo Will Blackman, and have Sherman / Williams / Simon on the outside. Lane, while a good slot corner, has a history of being hurt. And just like Walter Thurmond before him, Seattle is grooming his replacement and won't pay big to keep him.
TL;DR.
They will keep most of their core in 2015. They need to shore up Center with the Unger trade and ensure Nickel corner is fixed.
2016 if they sign Wilson and Wagner it is more of an issue of who to keep / finding replacements for WR Kearse, RG Sweezy, NCB Lane, and DT Mebane. Good players but replacable / signable. The big problems are LT Okung and OLB Irvin. Irvin @ current production has a replacement on the team and Okung is always hurt. Seattle has 2015 and the 2016 offseason (draft, free agency, develop internal talent) to find answers.
For 2017 they have quality young starters / contributors they need to replace / resign (Hill, Simon, Bailey) but no major starters lost except WR Baldwin. Personally I think we will see Richardson, Norwood, Lockett, and maybe Matthews step up + TE Graham and Willson to fill the void.
Lynch may be gone in 2017 -- now THAT is a problem. He cannot be replaced. Hopefully CMike is ready. If not Seattle will be hunting for a Stud #1 RB.
Personally, I think Seattle's roster is very solidly set for 3 seasons (2015, '16, '17) and 2018 is so far out who cares because there are so many unknowns that far out.
The window is not closing ...
unless ...
Every player like Bennett, Irvin, Chancellor, etc. holds out for more $$$$
Seattle can have them all under contract but cannot pay them all what they are worth. Kam has a good case -- multiple pro bowls, 2nd team All Pro 2 years in a row, and clearly an important cog getting high end kicker money. He signed 2 1/2 years ago and has 3 seasons left.
Bennett, who said he took a little less to be with a winner, whining about more money 1 season later? Yeah, Seattle needs to keep those guys OFF their roster because they need players willing to fit in payroll to keep a winner. They cannot get guys under contract only for them to complain. Sign elsewhere but don't "take one for the team" and then demand more money. I get it when players hold out due to performance / bad contracts, but not when the contract was parity at the time, 1 year old, and you supposedly signed to be with a winner and gave up more money.
THAT could be Seattle's undoing.