Did these guys stay in Miami for some unknown reason? And no, this is not a rhetorical question.
I agree, this may not be a rhetorical question, but it's a repetitive one, because you've posted it about 6 times in the last three weeks (aka "Wake is invisible", "Trade Wake", etc.).
I think you're being way too hard on these guys. It's extremely difficult for rush ends like Wake and OV to make plays when they're being fed a steady diet of up-the-gut runs, play action, three step drops and double teams. If you add in the fact that they're being freely substituted out for players like Shelby and Fede (who are admittedly better against the run), their opportunities have been very limited. The last 4 games, the opposing OC's have deliberately and methodically taken OV and Wake out of the game - and it's worked (yes, they have become invisible). But don't make it like it's somehow due to a lack of effort/talent on their part.
Well, on the last sentence, maybe it is a bit their fault. They are not elite at edge-setting, block-shedding or run-stuffing, and so they're not making the plays we really need in these games. But then, there are very few 4-3 DE's who are elite against both pass and run, and blaming OV and Wake for not being that is pretty rich.