Horford’s exit leaves a defensive void and frontcourt leadership; Tillman could inherit more minutes as a switchable big. Horford’s presence was a stabilizer on multiple fronts, and his absence increases the importance of depth defense and rim protection for Boston’s rotations.

Horford’s veteran presence and reliable cat contributions give him a high floor; potential honors talk could translate to heavier use or rest considerations.

Horford's free-agent status introduces a cap decision and leadership variable that could reshape Boston's rotation and floor spacing if he returns or moves on.

Horford was a Florida standout on Donovan’s 2006-07 teams; his NBA career as a big man demonstrates Donovan’s talent for molding versatile, high-IQ players from college success.

Horford’s availability and role in a crowded Celtics frontcourt factor into the center-minute puzzle. His veteran presence provides reliability, but minutes may fluctuate with the health of the core and the center rotation’s evolution, influencing streaming and stage-based fantasy value.