I never said otherwise. Right now, wingers have to move because we're running out of spots for them. Pretty soon, if you continue to try to keep everyone, players will have to move because you can't afford to keep anyone.
Doing the math, if we give Greenway, Kunin, Ek and Donato all about 4M, Fiala 5M, and don't trade any of them or Zucker, you'll have no Staal, no Koivu, and about 4M to sign a top six center or two. Kaprizov is likely going to get more than 4-5M if things go right, in 2022-23.
Your plan involves giving way too much money to wingers and bottom 6 players for a team with no top six centers in the near future. Move Zucker and Greenway, and you effectively free up about 9M in a couple years. So pick some guys you don't want, because push is going to come to shove eventually.