I am not in the habit of creating diaries over here, but I read many comments in the section below AJM's 9-8 daily update, stemming from the disappointment that Cat was not allowed to hit for the cycle, that called into question Wash's management abilities.
I am willing to concede that Wash has made a few mistakes throughout the season regarding in game decision making. Few of them, however, have affected the final outcome of the game, and most, in my opinion, were his way of personally challenging one of his players to rise to the occasion. Over the course of a long and difficult (losing) season, we usually see teams struggle down the stretch, with the veterans packing it in early and the young kids enduring growing pains. However, this team still seems to go out there every game with a strong desire to win, and have pulled out a number of one run games and come from behind wins in doing so.
Add that to the fact that there are a number of players on other teams who have expressed a desire to play under Wash, and I believe that makes for solid evidence that JD and his staff made the right decision last Winter.
Trey Hillman strikes me as a competent man with good Christian ethics, but he has never managed a major league game (that I know of), so I doubt he would be immune to mishaps similar to those that Wash has made.