I can't say how Capers will run the base... he sparingly played a base 3-4 when he had the personnel to run it better - how will he run it now that he doesn't have 'best-fit' players for the alignment??
That said, you can 1-gap out of the 3-4 base, but I think you have to crash the backside DE of which ever way the NT goes, and the OLB on that side takes on more responsibility for setting the edge on that side. As long as everyone executes to their responsibility, it shouldn't be a problem.
There is more than one way to skin a cat - but one thing is for sure, Capers can't be trusted to use the players according to their strengths - he's proven that.