At first I felt BB would continue to play a 4-3 scheme next season, but with the apparent evolution happening within the TE position, it makes a lot of sense that BB would want to get ahead of the curve and get back to playing a 3-4 and find ways to cover the middle of the field, and screens right away.
In BB offense, we have had a TE in a slot, and at wide out. Corners can't cover TEs. If the league follows in BB lead, bring the blitz will only hurt you defensively, the TE will bump the pressure and run out for a pass.
We need cover linebackers, and great safeties with good football smarts.
Its easier to teach linebackers to cover running lanes than it is to teach a LB to think about what would happen if the TE or RB goes out on a time delayed passing route.