MIAMI (CBSMiami) – Perhaps no other position group on the Miami Dolphins roster went through as much of an overhaul as the wide receiving corps.

The Dolphins spent big free agent money to land speedy receiver Mike Wallace and slot receiver Brandon Gibson. The Fins also retained Brian Hartline who finally lived up to his potential last year in a breakout season.

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While training camp is only a few days old, Hartline said he’s very excited about the receivers.

“I’m really confident, being confident is kind of like your armor in the NFL, if you start doubting yourself, no one else believes in you, you don’t believe in yourself, you don’t see yourself making plays, it’s just a steady slope from there,” Hartline said.

Wallace’s role in the offense will be to try to blow the top off opposing defenses. Last year, defenses would load up near the line of scrimmage because the Fins didn’t have a true deep threat. Now, with Wallace in the lineup, the Fins are a danger to take it deep at any point.

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“He’s a fast guy man, he’s got rare capabilities and I’m out of his running class, he’s definitely a rare talent, a rare breed and he knows how to expose it,” Hartline said.

Wallace has averaged 17.2 yards per reception for his career and has 32 touchdown catches since 2009, his rookie season.

“He (Wallace) wants to win, he wants to be even better, he wants to be a staple down her for a while, he wants to win football games, anytime you’ve got someone like that and he works hard, anytime you’ve got those kinds of characteristics it’s pretty easy to get along with,” Hartline said.

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If Wallace and Hartline can quickly form a good chemistry with quarterback Ryan Tannehill, the Dolphins offense appears, at least on paper, ready to challenge the New England Patriots at the top of the AFC East.