The Mets will have a new manager and general manager next year, as Jerry Manuel and Omar Minaya won't return in 2011.

The Mets declined to pick up the option on Manuel's contract Monday and relieved Minaya of his duties as GM, one day after the club finished a disappointing season with a record of 79-83.

Manuel posted a record of 204-213 after taking over for Willie Randolph on June 17, 2008. Minaya had been the club's GM since 2005.

•The Pirates fired manager John Russell one day after he guided the club to their first 100-plus loss season (57-105) since 2001.

•The Brewers declined the option on the contract of manager Ken Macha for next year. … The Diamondbacks retained the services of manager Kirk Gibson, signing him to a two-year deal with a club option for 2013. … The Reds rewarded manager Dusty Baker with a two-year contract extension

•The Twins said former MVP Justin Morneau, sidelined since July 7, will be out for the entire postseason.