Well, let's put things in perspective.
Before McCloughan got here we were drafting guys like LeRibeus (3rd round) and Jarvis Jenkins (2nd round), players that trended to be clear backups almost from the get go.
You may be cautious in giving the front office any credit for recent picks, but the point is they are coming in and contributing in their first years. They are not sitting on the roster being made inactive for 16 games as an after-thought.
Keyshoen Jarrett may not have an NFL future (hopefully this is not the case) because of the severe injury he suffered in what was unfortunately a meaningless season-ending game at Dallas, but that doesn't mean it was not a steal pick in Round 6.
Coming in and playing the slot corner role for the better half of the season, I don't think the Redskins win the division and make the playoffs without Jarrett and the midseason acquisitions of Mason Foster and Will Blackmon.