The Miami Dolphins' free-agent spending spree has at least one member of the team using a word to describe the team's offense that might increase what were sure to be already lofty expectations of the unit in 2013.

The Dolphins made one of the biggest splashes of the offseason by signing former Pittsburgh Steelers wide receiver Mike Wallace to a five-year, $60 million contract. Miami also spent big to keep wide receiver Brian Hartline, re-signing him to a five-year deal worth nearly $31 million.

Hartline was asked by the South Florida Sun-Sentinel at the team's fishing clinic for kids what he thought of the Dolphins' revamped offense, which also added former New York Jets tight end Dustin Keller and St. Louis Rams wide receiver Brandon Gibson.

"Championship offense," he told the newspaper Tuesday.

"I think we got every move we needed to make," he said. "We probably could add some depth at certain positions, but we've got all the pieces to the car, now we've just got to put it all together."

Quarterback Ryan Tannehill will be tasked with orchestrating the offense and its new weapons. He told the newspaper he took some time off after the season and then watched tape of his play during his rookie season with the goal of improving this season.

Center Mike Pouncey said he expects the Dolphins offense to be "explosive" and believes Tannehill, who threw for 3,294 yards with 12 touchdowns, 13 interceptions and a 58.3 completion percentage in 2012, will take it to the next level.

"Ryan Tannehill had a phenomenal rookie year with the talent he had on the football field, and obviously he has a few more pieces to throw to this year so we're expecting a lot of big things out of him this year," he told the newspaper.