Bruce has played this well in saying he's not leaving. It means he's got a chance to fight for his place. Hopefully showing some more effort etc.
If he was to come out and say he's available would mean less effort from Ross, why would he bother?
If the right bid/swap came in then I reckon Bruce would get rid. We would have to change the team/formation to suit Ross and I don't think he's good enough to warrant that.