Juan C. Rodriguez
The two most tenuous managerial situations might be in Florida and Houston.
Edwin Rodriguez, who replaced Fredi Gonzalez as interim manager last June, led the Marlins to a 29-19 start. Due in part to injuries and non-performance, they lost 17 of their next 20. The Marlins have retained Rodriguez through the 2011 season, but the prevailing thought is they will look for a higher-profile guy heading into the new ballpark in 2012.
In Houston, second-year man Brad Mills is 101-130 during his season and a half, including a 25-44 mark in 2011. Pitching coach Brad Arnsberg has lost his job. The new ownership could be looking to make a splash by installing its manager of choice.
Will Marlins cut bait?
Marlins owner Jeffrey Loria believes his team should win but seldom pays the price for players. Loria instead pays a well-regarded baseball management team. So at whom does Loria point the finger when the Marlins don't win? Sorry, Edwin Rodriguez.
Three other National League managers appear in danger because of ownership issues. In Chicago, the Cubs' high-priced ineptitude could cost manager Mike Quade his job. In Houston, incoming owner Jim Crane could dump the management that assembled the team with the worst record in the league. In L.A., where the Dodgers play to a half-empty stadium, the team could be up for sale soon, and a new owner might clean house.