Manager Notes: Renteria, Martinez, Mattingly, Manuel

Here's the latest on two National League managerial situations, and one more that has already been resolved …

• The Cubs are becoming increasingly active in vetting candidates to take over the managing duties at Wrigley Field. First up for an interview were Manny Acta and A.J. Hinch, says MLB.com's Cash Kruth.
• Next in line to talk with president Theo Epstein and GM Jed Hoyer is Rick Renteria, whose interview was set to take place today Mark Gonzales of the Chicago Tribune tweeted. The Padres bench coach managed the Mexican entry in the 2013 World Baseball Classic. ESPN's Buster Olney tweets that the club is working hard on its due diligence on Renteria, while USA Today's Bob Nightengale opines via Twitter that he is as likely as anyone to get tapped, and may even be a close favorite. 
• Also in line for an in-person chat is longtime Rays bench coach Dave Martinez. The longtime big leaguer never stayed in one place for too long during his playing career, but tells Marc Topkin of the Tampa Bay Times (Twitter link) that he "love[s] Chicago" and is very excited for the opportunity. 
• The winds can shift quickly in baseball. After dropping two straight to the Cards, Dodgers players are privately griping about Don Mattingly's shortcomings as a skipper, reports USA Today's Bob Nightengale. The club will nevertheless retain and extend him, says Nightengale, with the possibility of a dismissal waning after making it out of the divisional round. Don't expect Los Angeles to hand him a four-year deal, however, Nightengale notes. 
• Unless that bit of news came from Dodgers president Stan Kasten, says Steve Dilbeck of the Los Angeles Times, it may not mean anything. Dilbeck criticizes Kasten for having left Mattingly dangling all year without any public discussion of whether he would return, in spite of the fact that the organization has an option on him for next year. Unfortunately, says Dilbeck, that has allowed speculation and intrigue to blossom right at the point at which it is most harmful.
• Fired Phillies skipper Charlie Manuel is still trying to decide whether to accept an offer from his former club to do a combination of PR work, player development, and advising of GM Ruben Amaro Jr. He talked about his decision on MLB Network Radio with hosts Brad Lidge (his former closer) and Jeff Joyce. (Audio link.) Manuel said that he wants to stay in baseball, and particularly emphasized that he "still want[s] to manage."