Must have.
Can you provide the list of things you seen.
I don't keep a list and can't remember all of them off the top of my head but here's a few:
Being down by 1 in the ninth and Adams on first and he didn't pinch run Matt Reynolds for him. With Adams on first and the other team in a no-doubles defense he should have known that it would take 3 more singles/walks or a HR for Adams to score. Next batter hit a single to right and Adams went to second, Reynolds would have easily been on 3rd with no outs. Nats didn't score and lost game. He did pinch run Reynolds after Adams went to 2nd but it's a case of making a move too late.
Martinez announced his reliever before the pinch hitter was announced and the other team switched to a better left/right or right/left matchup.
Batting Turner 6th and the pitcher 8th is idiotic. Let Turner get on and steal 2nd which is what you expect him to do and then expect the pitcher to drive him in 2 batters later?
Harper's in a huge slump so what could be smarter than batting him first and starting the game off with an almost automatic out? The Nats need Harper but they can't afford to lose games while he's working things out.
Zimmerman making his own spring training schedule. How did that work out?
There are many more but like I said I haven't been writing them down. I could come up with many more if I wanted to waste my time on something that should be obvious to any Nats fan.
One more to think about:
In May Scherzer, Strasburg, Gio and Roark were the top 4 pitchers in the league in pitches thrown per start, all over 100 per start. In July Scherzer doesn't look sharp, Strasburg is on the DL and Gio and Roark stink. Coincidence?