But you said he'll use the formation in 1 or 2 games? What is the point of that exactly?
I think SAF will be far less likely to tinker this season than last, due to our failings in Europe.
I think, if we did sign RVP, then we won't see him, Rooney and Welbeck all in the same team at all, we'll always play a winger, we'll always want the option on the wing (unless they're all injured). If RVP and Rooney play together it'll probably involve dropping Kagawa or playing him in midfield (2 things I don't want), or maybe even playing him wide.
Overall, I just don't see us ever resting all 3 of Nani, Young and Valencia if they are fully fit, we never have done in the past, and your idea of '1 or 2 games' is a bit daft, because that's totally meaningless. If you thought we'd use it in 10+ games then maybe I could take it seriously.