Addressing the observation below that there's some question regarding retaining any Gallegos hires.
Here's what should happen.
Rather than get rid of them... sit down with them. Acknowledge they have been living through hell, not given time to do their jobs well. not given any mentoring, not given the support they need, and struggling to do the work of two dozen when their numbers are under a dozen.
Let them know, things are going to change. They will be held to higher standards, but every effort will be made to make sure they have the tools, and the mentoring needed to rise to the occasion, and they will not be walking in to court unprepared anymore.
They may not all make it, but they will have the chance, and the respect they are due as professionals. And when it is done, you will have a strong team.
And when it is all done, you will ensure that they get civil service protections, so they cannot be arbitrarily fired by any future DA.
A promise which was made to get a man elected, which was never kept, not even attempted.
All this - and HIRE new people, fill those unfilled positions. But give the existing people their due, they're trying, they have pride, and they'd like to have more.
Just my opinion. They deserve a chance.