What fit though? The Capitals as constructed aren't a heavy team or a fast team at least offensively. They're a wholly opportunistic offense who capitalize on limited chances rather than volume.
If you're saying they need to develop into a heavier team then you really need to consider how Ovechkin, Kuznetsov, heck even Backstrom to an extent fit in going forward. i.e. you'd be looking for a rebuild at that point
Everyone in our top 6 can score (yes, even Kuznetsov) which is Vrana's forte. I am not saying that the Caps need to be a heavy team, but what else does Vrana bring that the top 6 doesn't already have in spades? Only his speed.
But the only time he turns on the burners is on a breakaway. He doesn't use his speed to backcheck or to save a rush the other way. He doesn't use his speed to get to a puck on the boards before everyone else. He doesn't have the stickhandling to utilize his speed when the defense is set. It literally is all breakouts.
Which we need as well, just that since our other top 6 guys also can't do those things either or are now too slow, it just feels like it doesn't all fit together.