Quote Originally Posted by pbmax View Post

First, they are in 3-4 about 25% of the time. And when they are in 3-4, they are often aligned like a 4-3 Over defense. 1 tech, 3 tech, 5-7 tech and 9 tech (OLB).

So drafting just for 3-4 would leave you shorthanded for base nickel and dime: 75% of your snaps.
They've often said they wanted to draft/develop personnel that could switch to multiple alignments without substitution. I think that's at least one reason why Jones is 'standing up' and one reason why they drafted the Northwestern guy: You look at his tape and he really can play anywhere on the line except maybe nose against the run. He even looked reasonably comfortable in a zone blitz drop.