Per the Twittersphere:
Scott Downs will close for #Angels with Jordan Walden moving to 7th and 8th inning role at least on temporary basis.
— Mike DiGiovanna (@MikeDiGiovanna) April 27, 2012
Walden gave up a two run walkoff home run to Brandon Allen yesterday, but really, he hasn't had much to close this year...he also gave up 2 runs in two-thirds of an inning against Oakland on April 18, but in his other four outings, he's allowed no runs and no hits.
Walden had 32 saves last year, was named to the A.L. All Star team, and finished 7th in the Rookie of the Year balloting.