Steven Goff reports that goalkeeper Pat Onstad is unlikely to return to the Houston Dynamo and has been approached by D.C. United about joining its coaching staff to oversee the keeper corps. Tim Mulqueen, the goalkeeper coach for U.S. youth national teams and the early front-runner for the United opening, apparently withdrew from consideration because of relocation issues.

New United coach Ben Olsen is in the process of hiring two assistants. Chad Ashton, the former technical director who helped Olsen during his interim stint late this season, is set to return, but Mark Simpson, the club's longtime keepers coach, is pursuing other opportunities and Kris Kelderman seems likely to be reassigned.

Onstad -- who at 42 is the oldest player in league history -- has been weighing retirement after the Dynamo declined to exercise the option on his contract and exposed him to both the expansion and re-entry drafts. His salary ($172,000 in 2010) was sixth highest among goalies in the league.