Jon Heyman’s latest SI column is chock full ‘o goodness:It’s not in writing but Don Mattingly is basically Joe Torre’s heir-apparent in Los Angeles. Of course, most folks say he was the heir-apparent in New York too, but Torre leaving under a cloud and Mattingly’s domestic issues put a wrench in all of that. Here’s hoping that Mattingly, one of the game’s truly good guys, gets the gig in 2011 in a nice smooth transition.Heyman talks about how amazing Mariano Rivera has been in the postseason. How he hasn’t discounted all of the numbers he cites for Rivera’s blatant spitballing is beyond me. I also hear that Rivera was in on that whole balloon boy scam too, so we should even be more skeptical.Jim Riggleman is likely going to get the Nats job on a full time basis. Not very inspired — I had argued in favor of bringing in a new face — but maybe it’s best to keep some continuity until the team is truly on the upswing. I would be less than inspired if I were a Nats’ fan, but it’s a defensible decision, especially given how much change there has been in the front office. Give the new folks some time to get comfy with the team before making a move.