Fowler's go to move isn't unique, but it's rare for someone as strong as he is to use it.
He's got great bend for the rip move.
So, the move is a juke bull rush.
He jukes to get the OL on roller skates. Typically, the OL will lean for the outside move, but can't anchor. Fowler then explodes into a bull rush and there's nothing they OL can do expect try to anchor as best they can. And because he keeps his hands inside, he's equally adept and shedding right or left depending on where the QB goes.
Honestly, if he gets his head on straight with the way Wade's D is constructed, he could get 8-10 sacks in the remaining 8 games.
Also, Fowler is equally adept at playing the left or right, although he's really done well on the left side going up against the RT.
He does have to work on contain a little, making sure to not release inside if he's got contain, but his flaws aren't unfixable.
Also, once he gets into the building with our strength guys and has to put in the same work as our guys... he should be straight.
There's NO WAY anyone's gonna slack off on our DL with AD, Suh and Brockers as the big dogs. Sure, Fowler will be seen as a DPR (designated pass rusher, which is what someone like Von Miller is), but he's also not a liability in run support.
Lastly, he's not really suited do be a straight 4/3 DE. He's best as a standup OLB and Wade has done amazing things with OLBs who are rush specialists.