A unit may include an ESOP evaluation factor in the technical evaluation for a competitive sealed proposal under § 13–104 of this article for a contract subject to this subtitle. An ESOP evaluation factor may be: if a point system is used for evaluation of proposals, up to the percentage of the total allocable technical points authorized under § 14–1003 of this subtitle; or if a point system is not used for evaluation of proposals, ranked in its relative order of importance.