If Wardlaw was as injury prone as you think, Eagles wouldn't have given away their top pick and would have drafted him!
It is something that nearly made me bring Ford in last week after 1 game. Had expected a 50-55 against Pies and was a bit below, plus low TOG was noticeable. Think it depends on how many players you have to trade out. I have Wardlaw, with Ford, Oslin and McAndrew will all come in to upgrade Ashcroft, Worpel and Atkins. Hopefully Wardlaw gets an another spike game in.