I'm pretty sure the "extrapolate" line is a new TSW one-liner joke. It got going in the Orton/Wall thread. It's like deers, don't let him leave the building, at the airport, in a Ford Tempo, etc.
The reality is that he was probably a depth tweener for the Texans who run a 3-4. That means he can concentrate on fewer assignments/gaps in a 4-3 as an end. Hopefully it works out. If it doesn't, we're just back to where we were when Shaq got dinged.