Agreed, I'm really looking forward to what these centers can be in the future but getting rid of Johansen now is probably a mistake. Having that flexibility of moving him up and down the lineup is vital.I think his value (not $8M worth, mind you) in helping to insulate Glass and Parssinen is irreplaceable, frankly. Lose Johansen and those two are on an island and their play/development will suffer heavily for it. He's a steady and reliable asset, even if not as productive as we ever hoped, and can be counted on to eat minutes and take tougher matchups as needed. With his contract also the soonest to be up, he's one of the last veterans I'd consider moving right now.
How much is the team paying the four centers total? I think that's more important, the quality of play top to bottom and how much you pay total at that position. If the over-all numbers work then don't be too quick to get rid of the depth you have.
Edit: Did the math. $10.475 million. Not too bad for 4 centers.