That isn't the case greymule was referring to. Greymule, yes something like that did happen last season. Essentially, a coach (who knew the actual rule) argued that the player should be called out for the high five and the umpires did call her out (instead of issuing the appropriate warning).

Wrong.

The coach had the rule wrong and convinced the umpire to rule in her favor. The coach of the offense did not know enough to have the rule correctly applied.

All erred. The runner should not have been called out.

I wrote that poorly. I did not intend to say that the coach knew the rule and had the umpires apply it correctly, which I now see is how I wrote my original post.

The coach argued the runner should've been called out (which is incorrect) and the umpires did call the runner out (incorrectly). The coach did admit she knew that wasn't correct but she argued it anyways.

Then there was the umpire in NC who tossed a number of players, resulting in forfeit, for coming out of the dugout after a HR to congratulate the teammate, without helmets on, after game winning HR. I don't remember the exact details but believe it was two rival teams and the underdog would have won, but the ruling was overturned and they were forced to play again with underdog losing big.

Seems to me that all coaches who complain ARE SURE that they are correct and the umpire is wrong(minus the 1/10 of 1% who want to get tossed to motivate the team).
How does "pushing the discussion far enough I would get ejected" in any way help you convince the umpire to change his call? Thats just self serving to make yourself feel better.

Bad behavior is bad behavior and should be punished, whether its the 7th of a championship game or the 1st season game of a team that has no chance of even going .500(though Id give the championship game coach a LITTLE more rope, depending).

True, umpire mistakes happen, but rarely, if ever, do they make the only difference in a win/loss.
Did every batter go 3 for 4? No errors?, F1 didnt have a BB or HBP? Coach didnt send a runner who was thrown out? "But wait, that Blue, who we dont know, made a mistake, so the loss is his fault!!"--classic coachspeak.

The umpire in the OP was very wrong, but to answer the Q "what does a coach do when he he has alot riding on the game?"-- Realize that you cant control everything, and remember that 10 yrs from now- those players wont remember that game so much as they will recall your actions as an adult- to laugh at, or emulate as a good example...

The umpires on this forum, with the possible exception of YOU, actually do umpire real baseball games.

Posing as an umpire on an online umpiring forum to try to impress actual umpires with what a bad@ss you are.

Where does that stand on the top-ten-signs-you're-a-loser list?