The ex-Forest manager thinks that Megson's experience of the transfer window when at West Bromwich Albion will stand him in good stead now that the same rules are being applied in the Football League.
Clark told the Evening Post: "There is no doubt that Gary's experience of the transfer window system will help Forest.
"I have spoken to a lot of managers about the changes and they are dreading it, but Gary has dealt with it in the past. In terms of organisation of his squad that has to be a big advantage for him."