If he re-acquired McDonagh without the foresight of cap management and where the numbers lie, then it's just plain incompetence.
I don't think it's incompetence, so to me, it's just disrespect. If you as a team made a mistake with Sheary, or Jeannot, you make moves to rectify it. The Kings made a mistake with Dubois, they got out. The Canucks made a mistake with Mikheyev, they fixed it. At this point, if Tampa is unwilling to make a move to keep Stamkos, it's either sunk-cost fallacy or disrespect.