The Calgary Flames were perhaps the biggest overachievers last season – at least based on pre-season expectations. In order to avoid a meltdown similar to the one the Colorado Avalanche went though in 2014-15, they need to add a few pieces.

Brad Treliving has approximately $15 million to spend and his RFAs – Josh Jooris, Drew Shore, Lance Bouma, Michael Ferland and Paul Byron – shouldn’t cost much. That leaves the Flames GM with room to spend should he desire.

Here are four unrestricted free agents Calgary could consider targeting.

Chris Stewart

2014-15 Team: Buffalo Sabres, Minnesota Wild

While the speed of Calgary’s forwards was a strength last season, adding a bit of meat up front would benefit a Flames team that lacked size. After all, size was a detriment against the Ducks in the playoffs. Stewart showed signs with the Wild that he can still become a dominant power forward. Maybe playing under a coach like Bob Hartley would be a step towards that.

Michael Frolik

2014-15 Team: Winnipeg Jets

Calgary had terrible possession numbers and a responsible player like Frolik would go a long way towards improving that area. The 27-year-old Czech Republic native is good for around 40 points a season and is a responsible two-way player.

Jhonas Enroth

2014-15 Team: Buffalo Sabres, Dallas Stars

Unless they feel Joni Ortio is ready to be a full-time NHLer, the Flames need to add a legit pro goalie to support Jonas Hiller. Considering he played for two of the worst defensive teams in the league last season, Enroth performed admirably. He finished the season on a four-game win streak and at 27-years-old, there’s still room for him to blossom into a starter.

Martin St. Louis

2014-15 Team: New York Rangers

The 40-year-old is undecided about his playing future, but St. Louis going back and finishing his (Hall of Famer worthy?) career where it all began back in 1998 has a bit of a nostalgic feel doesn’t it? Although his numbers have dipped and he slowed down during the Rangers’ recent playoff run, St. Louis still has some gas in the tank and could also serve as a great mentor to small, skilled forwards like Johnny Gaudreau, Sean Monahan and Sam Bennett.