Brock will shit the bed , bust city
Based on what? He could shit the bed, he could be average, he could be pretty good. Do you have inside knowledge that the rest of us don't? Did they overpay? Of course, QB's are always overpaid. Has he proven anything? No, but what other options did the Texans have, Hoyer? Hoyer is a backup, nothing more.
As P. Manning showed us this past year, a team can win without a dominant QB. Does it help? Of course. The signing of Lamar Smith is huge, and Houston needs to improve it's o-line and get a tight end.
What kind of QB were they going to get with pick #22? I think in this case signing him made sense, and yes, they were desperate for anyone who resembles an NFL QB.
Only time will tell how it works out, but at least they might possibly have something other than an endless line of backups playing QB.