Aug 21, 2012; Seattle, WA, USA; Seattle Mariners catcher John Jaso (27) hits a RBI ground rule double against the Cleveland Indians during the 7th inning at Safeco Field. Mandatory Credit: Steven Bisig-USA TODAY Sports

The Oakland A’s have acquired catcher John Jaso from the Seattle Mariners in exchange for prospect A.J. Cole, Blake Treinen and a player-to-be-named-later as part of a three-team deal that sent Michael Morse to the Mariners.

In a corresponding move, the A’s designated catcher George Kottaras for assignment.

Jaso hit .276 with 10 home runs in 108 games last season for the Mariners. He spent the first three years of his career with the Tampa Bay Rays before being traded to Seattle in 2012.

Cole, who is rated as the fourth best prospect in the A’s farm system, was acquired in the deal that sent Gio Gonzalez to the Nationals. Cole struggled early on, going 0-7 with a 7.82 ERA in Single-A Stockton. After a demotion to low-A, he finished strong with a 6-3 record and a 2.07 ERA.

Kottaras, who signed a one-year deal to avoid arbitration on Monday, was acquired in July of last season from the Milwaukee Brewers, and was the backup to Derek Norris for most of the second half. He hit .201 with seven home runs and 34 RBI in 60 games, and played in all five postseason games against the Tigers.

So in a strange twist, Jaso will now be the starting catcher for the A’s, Derek Norris will back him up, and Kottaras will be handed his pink slip two days after re-signing.

Just another day in the world of Billy Beane and his revolving door.