I saw them bring in reservists to fill some of the drill sergeant slots, especially for the summer encampments.
For recruiters, they made a concession that they would give them almost a guarantee of their choice in follow-on assignments.
I also saw recruiters who chose that assignment as their last assignment before separating from the service; they'd move to the geographic region they wanted to separate from and finish up their degree while even recruiting students from the same college. Once their tour was done, they had already set themselves up with their degree and a job on the outside.
Plus almost automatic promotion to next senior EM grade, E7, E8 or E9.