Yep, I’ll stay on topic :)
The minutes point is what the discussion was meant to be about so you nailed it. If we’re bringing in all of these guards, but only play a two guard lineup, then there’s only 80 minutes available but if we go 3 guards that’s 120 minutes available which, given how the roster looks to be shaping up, probably makes more sense.
This also would allow Tucker, who I assume gets 15+ minutes a game, to spend his time at the 3 instead of possibly at the 2.