Replacing 20-game-winner R.A. Dickey will be a collaborative effort among the starting pitchers on the New York Mets, not a burden solely falling on him, right-hander Shaun Marcum said.

Marcum, 31, officially became a Met on Wednesday after passing a physical.

"As far as filling R.A. Dickey's shoes, I think that will be tough to fill, having one person do it," said Marcum, who will earn $4 million, with the opportunity to earn an additional $4 million in incentives. "I think if all five starters go out there and do their jobs, stay healthy, get to the goal of 200-plus innings, then I think that will fill R.A.'s shoes in itself -- having those five guys make 30-plus starts.

"The teams I've been on that made it late in the season, where we were still in the playoff race, we didn't use that many starters. Everybody stayed healthy and everybody made their starts. If we can do that, that'll be able to help replace the hole that was left when R.A. was traded."

Marcum, 31, went 7-4 with a 3.71 ERA in 21 starts for the Milwaukee Brewers last season. He spent nine weeks during the summer on the disabled list with right elbow tightness, but said the injury was nowhere near as grave as the issue that led to him undergoing Tommy John surgery on Sept. 30, 2008.

"We did MRIs, all that stuff. Nothing alarming," Marcum said about last season's DL stint. "We did another one this winter to make sure. And there was nothing alarming. I don't know what exactly it was, but the main thing is it wasn't a flexor tendon or a ligament or anything like that."

Marcum missed the entire 2009 season recovering from Tommy John surgery and because of back soreness that he experienced while making minor league rehab starts that July.

He said he would have liked to have signed a multi-year deal this winter, but "nothing came about."

The signing rounds out a projected Mets rotation that also should include left-handers Johan Santana and Jonathon Niese and right-handers Matt Harvey and Dillon Gee. Top prospect Zack Wheeler, a right-hander, is expected to open the season at Triple-A Las Vegas and make his major league debut this summer.

Dickey was traded to the Toronto Blue Jays on Dec. 17.