Didn't want to put this in the McMenamin thread, as this is to do with the other end of the field, but if Boyle is for the off I think Kevin McKinlay wouldn't be that bad a replacement. Folk will remember him from a few seasons back and no doubt find that suggestion bordering on ludicrous. But, by many accounts, he's a reasonably well established left back these days.
Again Kevin's another that has had a few injuries of late but if he could prove he's over that then I don't believe he'd be a bad signing. Archie would benefit to have someone with a bit of pace beside him and I don't remember KMcK lacking in that regard.