McKinnon has spoken highly of Petrie in past interviews, talking about his delivery and general technical ability so I can't see him going out on loan to be honest. He was ropey at left back on Tuesday at Stenny, yes, but he'll barely ever have to play there again. He's been solid enough when played anywhere else.
McGurn is a really tough one. He's 3rd choice just now, part time and the chances of him getting on the park this season are slim to none, barring a complete loss of form and/or injury from Laidlaw and Cuthbert. Cuthbert has been totally solid this season, I have absolutely no issue with him being between the sticks now. He's even made a few cracking saves, with his hands too! I feel for McGurn because he knows how we all feel about him, but he'll understand the predicament he's in.
As for Davidson, I just can't decide about him. I'm happy for him to play centre half, he was apparently very solid yesterday and had a good game. At centre mid he just doesn't get on the ball nearly enough, resulting in us lumping it up the park. Tuesday was a prime example, we were really looking for him, as the senior member of the midfield that night, to go to Bates and Petrie and say, "give it to me", but he doesn't do it. He doesn't drop off into that space as DM and take the square pass from the full back of CB, he jogs into the middle of the park and let's them hoof it, resulting in the fans getting edgy and then having a shit game because they've got no confidence. If he's going to be centre half cover, I'm more than happy for him to do that. Centre of the park, nah.