Over the years, Major League Baseball executives have made plenty of questionable decisions regarding their starting rotations.
This could be in the form of an albatross contract handed to an undeserving pitcher; more commonly, it could be a decision to keep a pitiful arm in the rotation.
Before jumping into my research, I had to come up with some basic criteria to make a player eligible for consideration.
The most important factor I decided upon was that the pitcher had to toss a minimum of 500 innings with the particular team. Any pitcher can have a poor season, but I wanted to find the players who were consistently bad.
In most cases, having a 500-inning marker means the pitcher would have had to be in the rotation for three seasons and would have made 100 starts, seeing as many times bad pitchers don't pitch as many innings.
Finally, I didn't care whether the player was in his first couple of years or in the twilight of his career. If he was considered good enough to send to the mound for at least 500 innings—whether 20 years old or 40 years old—then he was most certainly fair game for this list.
Here are All 30 MLB Teams' Worst Pitcher of All Time.