I think we'll see more manipulating of rules. Two instances come to mind. Of course, this has always been around, but seems like coaches are more willing to openly do this than in the past. 1) The twelve men on the field in the Super Bowl near the end of the game. It may have been a mistake, but it was brilliant in its way. Sure, you can't do it every play, but pick a spot to do it and it makes a lot of sense. I'm willing to give an extra five yards if it means a ten second run off when there's like 20-30 seconds left in a tight game with the opposition trying to mount a drive. (Personally, I think this was entirely intentional myself).2) The David Akers to Michael Crabtree TD pass. Harbaugh and company found a minor loophole in the rules and caught the Rams napping. Another one I think we'll see is jumbo packages with one, two, and even three lineman reporting as eligible receivers. The niners did this with quite a bit of success this year, going so far as to using defensive tackles in some formations. Of course, a lot has to do with the talent of the players, but I suspect we'll see more of this. Not a huge trend, just more. The dual TEs seems like a good idea on paper, but I just don't think most teams are going to be able to find two top TEs like NE. I think we'll see more of what Schwartz did in DET, with a second TE as a viable option in the offense, especially in the red zone, rather than putting up elite numbers throughout the year.