Than you so much Alonso and Nachtmahr.
So if the +1 is decided only by skills, that means (as BB-Justin said I think) the best defensive player will be selected regarding his position on court, but the formula will change a bit between if you selected outside +1 or inside +1, having more impact on the first one the OD, and ID on the second one.
To sum up, you only choose who you want to take the most defensive responsability, right? It doesn't matter if the oposing team play inside or outside, the GE will choose "the best offensive" player in that tactic and your job is to choose which +1 is going to defend him (in case you clearly have different build defensive players).
Maybe I still don't comprehend it 100%...