Somehow the exact same thing happened with me. Hartline didn't progress, was too slow, and too expensive to resign. Bess I now signed to a long term deal, but with no bonus. So he's probably on his way out next year as I'll find a draft pick to beat him.
Got Jerome Simpson, Brandon Tate, and a rookie WR to fill out my WR this year with Bess as the 4th. TE is an issue with the 'fins, and I picked up Martellus Bennett off the waiver wire int the preseason and then signed him again the first offseason.