Hmm, I get the intention of the list, but really... As everyone has stated Tebow is a definite flaw in this list. Dawkins is an obvious omission. I'd include someone like Haloti Ngata, but they already have too many Ravens.
Take Tom "Oh no, someone scuffed my shoes, throw a flag!" Brady. He'd never make it in a era with no roughing the passer. Someone like Ronnie Lott or Laurence Taylor would have sent that baby home crying after one hit, especially when he realized a ref wasn't going to hold his hand. Put Vince Wilfork in there if you need a current Patriot.
I can see the idea behind taking Hines Ward over some of the flashier receivers right now since he can take a hit over the middle like few now a days would be willing to. No defenseless receiver rule, no 5 yd bump rule, no helmet to helmet rule. Yeah, most of the prima donna today wouldn't cut it if that was the case (looking at you Randy Moss). I still think someone like Fitz, Andre Johnson or Megatron would be fine even with the 70's rules, but if you want someone who's tough and can grind it out, I don't know if Hines would be my first choice. I might go for Boldin or Wes Welker. Both of them make their money over the middle and are tough as hell. Steve Smith (Panthers) is another one I would pick for a tough over the middle receiver.
Honestly, they should be grabbing most of the current tight ends. Where's Gonzalez, Gates, Gronk, Witten, Miller, Pitta, Davis, Cooley and Clark. You can make the "flashy, but doesn't want to get hit" argument for WR, but not tight ends. I can't imaging someone from the past saying they don't want a Jimmy Graham on their team because they aren't tough enough. That would make no sense.
For that reason, and the inclusion of Tebow where he doesn't belong, this list sucks.