Jerome Williams has spent the past seven years proving he can pitch as a starter, a reliever or both in the same week. The Angels are used to this and might take advantage of Williams' versatility when deciding who to cut from their six-man rotation this week.

The veteran right-hander is one of two or three candidates to go to the bullpen along with Joe Blanton and Tommy Hanson. Angels manager Mike Scioscia will reduce the rotation to five starting Friday.

It's easy to forget in 2006, Williams arrived in a major-league bullpen the same way most starters do: Involuntarily. The Chicago Cubs had seen enough of Williams as a spot starter when they sent him to Triple-A in 2006. That's where the conversion unofficially began.

"I didn't know how to do it," Williams said and added he learned by "talking to the veterans on the team - guys like Jason Christianson, Ray King, Downsy (Scott Downs)."

And those were at three stops - San Francisco, Washington and Anaheim.

In between, he pitched in the independent Golden Baseball League and Taiwan, the definition of a "rough transition."

Williams is an exception to the unwritten baseball rule that says starters are starters and relievers are relievers.

Last year, Williams started 15 games and relieved 17; this year he's on pace to start 15 games and relieve 24. He can become the 51 st pitcher to do so since 1990 if he holds pace.