Doyle maybe a bit trickier. Made no secret of his motivation being a last big pay day - loves playing for Wellens, though.
Aka balance. I think if he's at a club that works for him (as we do at present), might it be easier for him to say have a 2yr deal with us on £8k. As opposed to maybe a 3yr (not too likely now) deal elsewhere on similar or a little more? He strikes me as a player who actually loves to be playing regularly too. So he "could" see out his career playing regularly in the Championship for us or he "could" be sat on a bench at say Sunderland/Wigan.
We obviously aren't privy to his thoughts and private conversations but I'd guess that if we offered him a tasty promotion package then he'd be "better the devil you know". I think it would have to be someone offering £15k or similar to make him budge.
NB: The wage amounts are a guess but I'm basing it on him being on around £5k atm. But suggesting that I think someone would have to offer around double, whatever our improved terms were to make he and his agent look up.