The Mariners fired Lloyd McClendon, and U.S.S. Mariner gives a reason why, a reason that goes back beyond the current manager:

Ultimately, I think the problem was just how few players seemed to really step forward and make the leap under his tutelage. That sounds damning and all, and I don’t really mean it to. It’s the job of the GM to get players who will develop with proper instruction or who are good enough not to need further development. There is a hell of a lot of blame to go around for Dustin Ackley’s Mariners tenure, and I think McClendon should be allocated less than 1/1000th of it. But all the same, seeing Ackley slug .654 with New York was a good (if statistically unfair) reminder that Seattle wasn’t getting him to tap into his potential. The same could be said for Chris Taylor, the Ketel Marte of 2014, or, obviously, of Mike Zunino. I think the bulk of the blame there goes to the GM and the Player Development head, but you’d like your major league field staff to have some influence, too.

Tim Bogar seems to be the favorite to get the job.