Brissett has only started 2 games, and already the guy is looking like he deserves to be a starting QB in the league--the kind of starting QB a lot of teams would love to have right now. When I look at his performance yesterday versus the Browns, I have a hard time imagining that things would've gone any better had Luck started. Brissett's skill set and measurables seem very close to Luck's--they're both athletic, both poised, both have strong arms, etc. And Brissett doesn't seem to make bad decisions either.
Granted, Brissett has had only 2 games as a starter. Only time will tell. But so far, Brissett is looking very comparable to Luck.