Honestly, Jim Tracy, aside from his obvious and well documented "brutal in game managing"(Keith Law, ESPN top baseball analyst), also has shown a proclivity to injure or further harm his own players.  Cases in point;

I wrote this comment here back in Dec. 2010; 

What actually happened to Manuel

Jun 20 MIL L 6-1 0.0 3 5 5 0 1 0 2 2 17 5 L(1-4) - 4.19
Jun 19 MIL W 8-7 0.2 3 3 3 1 0 1 3 1 10 5 - - - 3.03
Jun 18 MIL W 2-0 1.0 1 0 0 0 0 1 1 2 16 4 - Sv(9) 2.37
Jun 17 @MIN W 5-1 1.0 0 0 0 0 0 0 0 3 9 3 - - 2.43

The last column is Corpas’ ERA, which nearly doubled from having to pitch four days in a row. Jim Tracy blew out Manuel’s arm, because Huston Street was coming off the DL and was expected to resume closing duties, even though Corpas had proven capable of the responsibility once again. You’ll notice that only one of the four games was a save situation, and the final game in the set had Aaron Cook going seven innings before turning things over to the bullpen, Corpas was needlessly burned out with several other fresh pitchers available.

Then there was the incident where Troy Tulowitzki(maybe you've heard of him, he's kind of important to the Rockies future) remained in the game to run the bases, where headfirst sliding is prevalent, after being hit on the wrist squarely and BREAKING it.  Tracy checked him out, and determined that he was fine and left him in, and then after the next batter thankfully hit a homerun, Troy removed himself.

And now, we can pinpoint more player abuse, where the genius manager wanted to get Ubaldo an arbitrary complete game shutout last season.  So poor Jimenez had to trot out for the 9th inning and throw 22 more pitches, bringing his total to 128 for his 4th 120+ pitch outing early in the season(he had a couple 115 pitch outings already as well).  Up to that point Ubaldo sported a 0.79 ERA through 2 months/11 games, and then it began to steadily climb as Tracy left him in too long time and time again.  Over the next 2 months Ubaldo's ERA was a staggering 5.67 until he was finally so bad that he was taken out early and didn't go over 100 pitches for 3 straight games.  Following that stretch of self inflicted rest, Jimenez retained a very impressive 3.09 ERA for the rest of the season, despite Tracy still continuously riding him too hard.

Anyone here who doesn't realize Jim Tracy is the worst manager in baseball, and is the biggest cause of failure for the Rockies to compete, just doesn't get it.