Mike Reilly is a good defenseman, can fill in at both LD/RD, can move the puck, and wins his minutes on the ice. Ideally he'd come in as a 7th defensman and should cost around $1m.
Jankowski has size, can provide a lot of what the Leafs were getting from Laughton or Kampf at 4C but for less money, probably around $1m and he wins his minutes.
Jeff Malott is big, 6'5", probably one of the toughest guys in the league, can provide the toughness of a Ryan Reaves or Pezzetta but is a better player overall. He wins his minutes and would come in probably around $1m.
All in all those players could replace the Benoits/Stetchers/Jarnkroks/Kampfs of the lineup and be slightly better overall, provide a little more value.