The thing is we don't know whether this is potential == 0
Well, it definitely is 0 in the list of denominations... if you hover over "allstar" it says 6... counting back to "announcer" is 0. But you're right, that doesn't necessarily mean that there is no potential... although I strongly suspect that this level means that the player is soft-capped at their birth skills.
Otherwise, I don't think there's much point in you and I trying to convince each other on this point. Anyone else?