http://sturminator.blogspot.com/2012/02/considering-mario-williams-in-dallas.html another topic he raised Then the counter might be, "Bob, can't we just switch back to a 4-3, then?" Sure. But then, I need to change all sorts of things that I have already done to this defense. I will need to release a bunch of DEs like Marcus Spears and Kenyon Coleman, as they don't fit my new scheme. I need to find linebackers. Spencer is gone, Bradie James and Keith Brooking don't run well enough anymore, and I am not sure what Bruce Carter can do, but I do know he was drafted with the 3-4 in mind. Chicago has a great 4-3 front, but it works because they have two exceptional linebackers who can do wonderful things from the "Mic" and the "Will" positions. Brian Urlacher and Lance Briggs have been running sideline to sideline for years at All-Pro levels in that scheme. I think Sean Lee could handle Briggs' role on a reasonable level, but I am not sure who my 260-pound beast like Urlacher would be in the middle. So, to accommodate Mario Williams, I need to open up several new holes that might make this counterproductive on top of a $100 million deal for your new 4-3 end opposite Ware. Oh, and I am not sure my coaching staff believes in a 4-3 at all. Other than the MLB I don't know what the problem is here. Brooking and Bradie James are done so we have to replace them anyway. Coleman isn't young and he can't pass rush so he could be replaced , Spears is just a run stopper. Switching over to the 4-3 might the Cowboys to get rid of marginal players , but isn't that what you want to do anyway? wouldn't you want to upgrade them anyway on a defense where the pass rush is DeMarcus Ware against the league?