Odds & Ends: Phillies, Span, Nats, Lohse

Earlier today, Jon Heyman of CBSSports.com looked at ten big league managers whose jobs could be in jeopardy this season.  Charlie Manuel of the Phillies makes the list as he is in the final year of his contract and potential replacement Ryne Sandberg is on the coaching staff.  Ron Gardenhire is another manager could be on the hot seat because of pressure from upper management, but if it's up to GM Terry Ryan, he won't be going anywhere.  Here's more from around baseball..

• Baseball could be entering a golden age for trades thanks to changes in the CBA and the wave of extensions reducing the talent level in the free agent pool, writes Joel Sherman of New York Post.  Teams are also no longer under the impression that a handful of superpowers will dominate the market, giving other clubs with championship aspirations confidence to make bold moves.
• The Nationals' trade for Denard Span indirectly stemmed from maneuverings involving the Upton brothers, writes Ken Rosenthal of FOX Sports.  The Nats, according to a major league source, made a strong attempt to trade for Justin Upton early in the offseason.  But when that didn't happen, GM Mike Rizzo refocused on finding a left-handed hitting center fielder who could bat leadoff and rarely struck out.  Span fit the description perfectly and the Braves' signing of B.J. Upton to a five-year, $75MM deal scared them off the free agent market.
• After the Cardinals learned that they would be without Chris Carpenter this season, Kyle Lohse says that he got calls from his former teammates, but not the front office, to gauge his interest in returning, writes Derrick Goold of the St. Louis Post-Dispatch.  When asked if he thought they were curious or gathering intelligence for the club, Lohse said: "Both."