Plain and simple, Collins at LT > Boling at LG.
This has been discussed before, but we finally had a brief showcase of Whitworth at LG against the Browns since he played there back in '08. And I have to say I was pretty excited about it (and at the same time panicked about Zeitler).
I'll be the first to admit I always considered Collins overrated. However his performance against Julius Peppers in week 1 can't be overstated and Boling has been marginal at best (especially next to Cook). While Wthiworth was playing in at LG, it just seemed the entire left side of the line was solidified and Dalton had ample time to throw. If not for Dalton overthrowing Green on the first series after the line shift, we would have even scored our only TD. In the final play of the Whitworth at LG clinic, a linebacker blitzed by Bernard who was running out of the backfield. Dalton should have been able to hit Bernard over the middle as he was open, but was instead staring down Green (as usual) and fumbled the ball. But I digress...
Not only did the pass protection hold up pretty well, but Green-Ellis had a couple nice 5 yard runs with Whitworth paving the way next to Collins. I think by now, most would agree Dalton is severely handicapping this offense and he'll never be an Aaron Rodgers or Drew Brees. However, with a little extra pass protection and an improved running attack between the tackles, it might be enough to get this offense over the hump - even if it means sliding a $5M Probowl LT over to LG.
Final thought: considering Whitworth was slid over to LG, it would have to mean they've been considering this move, right? Or at least they've planned for this scenario. After all, they did have Trevor Robinson available on the sideline with Hawkinson deactivated.
In any event, I'm still wondering why we're wasting a roster spot on Pollak, a 28 year old journeyman who has yet to even be healthy enough to play this year.