I am not sure that we really need a new right midfielder, Green and Wagstaff both have their strengths and weaknesses. I would pick depending on the opposition we are facing, for a more attacking full back, I would probably plump with wagstaff, due to his commitment, and counter attacking pro's (see notts county away). For a deep lying full back i would play green because he would have that little bit more space and time for the early cross from deep, or to cut inside and whack it. However if someone becomes available that is clearly better than them we would be stupid not too look. I thought that was SCP's transfer policy to begin with, he will only get players who can improve on the squad we have already.
I'm not sure if I would be too confident with them as our only options on the right next season. As you say Tricky, if someone becomes available who is better, then we have to go for it. Antonio would do that for me, though I imagine he will sign for the Massive.