Yup, and this one depends on you configuring the SOHO wifi router as a WAP only. SOHO routers are 3 devices in one. Router, switch, WAP....in this scenario, the device should only function as a switch and WAP.
Having 2 routers in your home network is just more trouble than anything in almost every case.
I would likely go with:
Comcast Gateway --> 8 port switch --> router was WAP (no longer using WAN port)
In fact, the SOHO device could sit in another room as needed for wifi coverage.
Depending on how many ports the OP actually needs, the 8 port switch could be enough.