"I have spoken to Aidy Boothroyd about Moses and we're just waiting for things to fall into place. The paperwork is being put together and should be signed shortly," said David Wetherall.
"If Watford were to definitely want him back then we've got to cover for that eventuality but when you've got this many loan players, you can't cover for absolutely everything.
"We've hit a couple of brick walls again with regards bringing in new players but that's the nature of it at this time of the year. There are very few people available.
"We're trying to cover ourselves in a number of areas and we'll be working away at it. I've still got a few targets in mind."