Keegan will very likely still be taking on the more difficult frontcourt matchup on defense but just not having to chase guards around will be big. And having two versatile, switchable defenders who are also great outside shooters is about the best way to fill out a lineup between DeRozan, Sabonis, and Fox. Ideally you'd want some weakside rim protection too, but beyond that this is maybe the most balanced starting five the Kings have had since the glory days with Bibby, Christie, Peja, Webber, and Vlade.