Easley is the other DE. He had a nice year last year which is why he got an original round tender (1st). I expect him to do even better in this D. It will help with him getting more snaps. And while Donald likely wants to stick with the 3Tech, Easley is good at any gap, 3,5,7,9. Which is cool, because Wade's 3-4 uses a 1gap NT, a 3T and a wide DE, usually 5 gap. It's pretty similar to the Texans' 3-4 in that respect. Easley will be used like JJ Watt with less freelancing.
Understanding that with shifts, it's not uncommon at all for a 3T to end up in the A gap (1T) or B gap 3T.
I included this easy to read diagram for any who might not be clear on the gaps and DL technique numbering system. Evens are 2 gap. They play heads up on a player. Like, the KC NT in their 3-4 is a 0Tech, 2 gap. He usually lines up directly on the center. In Wade's 3-4, his NT is a 1T. And honestly, that's what we had before. Brockers was a 1T DT, AD was a 3T DT and they shifted between 1-3 for Brockers and AD shifted between 1-3 and occasionally AD would be in the 5T or C gap. Then we had ends that depending on the DL call, would be in 5,7, or 9 depending. Actually sometimes, they'd be a 6T on certain running downs.
Point is that with Wade's D being a penetrating D for the DL, there's very little change in their generic responsibilities from before. It would be a bigger change, actually, to go from Wade's 3-4 to KC's 3-4 because other than OLB Houston, their DL would be totally different from ours.