Him not needing to be cap compliant is exactly why there was another move predicated on moving Walman/his cap.
Two days after the deal we are still trying to figure out exactly what happened.
www.shapshotshockey.com
Heres Sean Shapiro's piece on Walman. He has many connections throughout the league. I'm giving Yzerman the benefit of the doubt here, because according to Sean's sources SJ would have "claimed him off of waivers". The only options are - Walman was part 1 of a deal that fell thru, or Yzerman didn't shop Walman around and he added a 2nd onto a player that had value by himself.