Jake played a lot in these three positions and so he could say that he has more experiences than David and Harrison in those positions, so he could play so well in any of those positions.
Of course, it was not that Jake was thinking of playing in other positions, but because he thought that if he knew how to play in various positions, his decisions as a PG at the time of the pass could be based on his own experiences in other positions.
So Mark was doing a much more dangerous thing than he thought, because if Jake learned all of Mark's moves he could play hundreds of times like Center and PF as well.
So soon Jake could take his position, of course, this would never happen, Jake's greatest talent was in the shots from outside, if he played in an internal position he would lose his most powerful weapon.
