No way, no how, not even a thought rolling around in Rodgers' mind that Cleveland might be somewhere to play football. If Baker ends up holding out until the Browns trade him or give him a new contract, then I would honestly look at Jimmy G as the best option. If Watson should sign with the Falcons or the Saints, then there really isn't much to choose from in terms of replacing him. Its not even a guarantee that Jimmy G would be on the market, but if push comes to shove with Baker that is who I go after, no matter what it might cost (most likely draft picks).
It doesn't matter who Watson signs with, this is your pool of QBs to pick from: Matt Ryan* (Falcons), Jacoby Brissett, Nick Mullens, Josh Dobbs, Marcus Mariota, Chase Daniel, Mike Glennon, Ryan Fitzpatrick, Andy Dalton, AJ McCaron* (Falcons), Cam Newton, Trevor Siemien* (Saints), Jameis Winston* ( Saints), Blaine Gabbert, Geno Smith, Jimmy Garrapolo* (SF trade?), Baker Mayfield
Really nothing to choose from if the Baker problem is not resolved.