Hay turns 26 next year plus he would be costly in terms of what we would need to give up to get him from Hawthorn (don't if he's contracted or can nominate for the PSD) and what his high $$$ salary would be once he was at Punt Road. We wouldn't be able to afford him. Finally as RR says he's injury prone.
If we're truly rebuilding then Hay is a definite no-no!