I think someone needs to give it up for Kyle Shanahan. Last year many members on this site were calling him a bum as a play caller and wanted him out. Now that he has NFL calibre talent he is looking much better, no? He consistently creates game plans and calls plays that produce QB's with QB ratings over 100.
I always said give him talent like Matt Schaub and Andre Johnson and you would get the same results. Well, we don't have a true #1 WR like Johnson, but I'd argue that we have better QB talent now and look at the results. Everyone is learning just what the pistol formation and the zone read scheme can do and it is taking the league by storm.