I'm re-watching the first series now, and Rob Housler is a brutal run blocker. They're running a lot of 2TE sets in this opening series. No one's been near Kolb until the first sack that ends the drive.
Second series no one gets near Kolb on the deep attempt that Floyd drops. Kolb has time to throw on 3rd down and just misses the strike zone on a pass to Fitz. Actually does a good job of bouncing up into the pocket to buy a moment but has to alter his release point to throw around a safety on a six-man rush.
Third series opens with what I guess is a screen pass, but WiPo ends up in front of Snyder when he gets the ball (WTF??). What I'm seeing is run formations on first and second down and then the spread look on third and medium. Second down is a five-man blitz and Kolb stands up through it--good blocking. 2nd and 6 and Kolb runs backward again even though there's a pocket to step up into, dump off to Williams.
4th drive begins in Max Protect because it's a deep pass with both WRs and a TE running verticals. 1st down Kolb's clean.
2-minute drive begins with a clean attempt. 2nd pass to Floyd ends up with Kolb getting creamed, but he had time to throw. 3rd pass to Floyd there's no one within 8 feet of Kolb. Pass to Roberts Kolb stands tall and delivers the ball and gets a little jostled afterward. On the pick there's no one within 6 feet of Kolb and he still delivers a dumb pick. It's possible there was a miscommunication on the route, and Kolb was expecting a comeback or something.
You can see below that he had an ideal pocket to pass from.
Look, believe what the idiot #4 broadcast team on CBS thinks, or what a bunch of guys in the game thread who are going to blame the OL anyway thinks. I was at the game, and never in the first half did I think, "Man, Kolb's getting killed out there." Watching the tape, it's difficult to argue he's under duress when he's getting protecting from five-man rushes. Yes, the two times he was pressured in the first half he ended up getting sacked. But he wasn't under duress the entire first half.