I would play Buchanan at right back as he has played there before in an emergency, put Poole in as a defensive midfielder with McWilliams and play Grimes in the centre of 3 with Hoskins replacing Hanley who I don't rate. Hoskins and Waters could regularly swap sides to mix play up. We need as much strength in the holding positions as possible to protect the back 4. I would not want to waste a shirt by playing Richards at all, and would recall Iaciofano to play up front. At least we would have pace and mobility and wouldn't lose anything more in the air as Richards is incapable of getting his feet off the ground and winning anything anyway.
Update
“He’s not training,” Hasselbaink said of Moloney, who was forced off 42 minutes into Saturday’s 6-0 defeat to Bristol Rovers at Sixfields. “We want to know for sure what he has so we sent him for a scan this morning.
“We don’t think he has a tear, but we don’t know for sure. We think he might be okay for Saturday.