Speaking to the CT about his lack of options in midfield, Coleman said: "David Bell is nowhere near ready to start and he wasn't really ready to play against Cardiff.
"Isaac Osbourne is struggling with a knee problem so we are short in that area.
"I thought he did a good job on Tuesday when we asked him to do a man to man job on Joe Ledley and I think he nullified him but Isaac is struggling himself and getting through it for us, which we appreciate.
"But it is an area where we are looking to strengthen before we get Gunnarsson and Clingan back."