Now that they know manager Tony La Russa, pitching coach Dave Duncan and batting coach Mark McGwire all are coming back, the Cardinals are shifting their focus to upgrading their infield. Miguel Tejada is on their radar as they look to improve at two of three spots among second, short and third. … Retirement talk by Bengie Molina (right) isn't being taken seriously by many people, although the Rangers catcher insists he doesn't know if he will play in 2011. He has had a great postseason — in his own words: "Not bad for a fat kid that everyone makes fun of when he runs." … If a team that doesn't have a strong international operation is smart, it will find a position high on its food chain for former Mets general manager Omar Minaya. He knows talent and can find it, even if you couldn't tell by the last few Mets teams. … Pedro Martinez is working out in the Dominican Republic. He says he's "looking for motivation to come back." Some team should bring him to camp on a make-good contract, but only if he signs on for the full ride, not the 10-game, season-ending package. … Bobby Valentine would be a great choice as manager for Sandy Alderson, the Mets' new GM. Yes, their egos would clash, but the franchise would benefit. … Valentine is also one of four finalists for the Brewers, a search that could expand to include Rangers hitting coach Clint Hurdle. … Will the Brewers be able to find a market for Prince Fielder? There hasn't been a big one so far, making it possible they will enter 2011 with him at first base. … John Farrell, the Blue Jays' new manager, is a big fan of Jason Varitek, whose return to the Red Sox seems in serious doubt. The Jays have an opening at catcher and could import Varitek to help likely regular J.P. Arencibia.