Right. Offensively, position matters much less than skill (need mix of ballhandling, passing, shooting, rebounding, guys who can screen & roll, etc.). Doesn't matter which position it comes from as long as you have enough of those skills on the floor. Can get by as a smaller team assuming you shoot well enough or have undersized rebounders (good rebounding guards), or a bigger team so long as you don't clog the floor or have no ballhanders. Have deficient offensive players and your offense stagnates.
Defensively, it's about being able to match up - potentially against multiple types/sizes of players - as switching is ever more important. Have non-defenders and they'll get picked on. If you lack size, you better find a way to combat teams from pounding offensive glass - either rebounding well despite small ball, or force fast breaks.
I think Anderson will work as a situational PG so long as there is enough shooting on the floor and someone else can guard the PG (Danny most likely).