Per the South Florida Sun Sentinel:
It possibly could wind up like during the playoffs, where it’s situational, with Kevin Love starting against bigger front lines and Caleb Martin starting against small-ball alignments. But Erik Spoelstra has shown during the regular season that lineup continuity is the preference. Still, several factors could come into play. Foremost, if Jimmy Butler misses the expected 20 or so games, then Caleb could be the option to start at small forward (if it’s not Josh Richardson). And I also could envision Spoelstra toying with Love as his backup center, which could reduce the chance of Kevin starting. Still lots of moving parts, and lots of time before a decision is needed. Heck, Haywood Highsmith could potentially also enter the equation at power forward.