Players become teachers in a school for wizards

>Players become teachers in a school for wizards
>Problem: The players are Murderhobos
>Setting is pretty much Harry potter + Mage: The ascension and awakening

Why would a school hire murderhobos?

Murderhobos would have a wealth of experience with strange magic and unique solutions to problems.

The school has a lot of cutthroat in-fighting behavior.
It may or may not have just underwent a hostile takeover by an evil cult.
It's built atop ancient ruins. The libraries, laboratories, etc. gradually fill with monsters.
It's socially acceptable to kill (mediocre) students.

>Why would a school hire murderhobos?
Practical experience against the Dark Arts.

Milfy teachers.
EXP every student alive each day.
Twice as much for excursions.
Learn new magics and keep honorary scrolls.
Golem crafting in arts and crafts.

Lack of funding. It's the magical equivalent of an inner city high school and the players was all it could get

It's a technical college and they need industry experts to teach instead of academics.

The players teach advanced combatives
The school is in a remote and dangerous area, prone to assault from enemies, natural and unnatural, so in addition to teaching they are also the security force
While the schools leadership finds the players sometimes hard to control, and sometimes loathsome, they have survived incredible odds, and that kind of skill (or luck) doesn't come about very often

>Why would a school hire murderhobos?
In the real world, sometimes certain experts in certain fields become honorary professors despite not having a doctorate. If the PCs are murderhobo's, I imagine it'd be something like an art college inviting over a really famous artist who never attended any artistic academies himself and just drew doodles in class as a kid.

>Pff, what is this shit? Books? You learn your magic from books?
>Listen kiddos, you don't know what magic is until you're half drunk in a tavern, just got robbed and need to do party tricks just to pay for that night's rent
>"Specialization"? "Basic training"? "Cost-benefit analysis"? What is this, my tax returns? Just cast explosions or whatever.
>I have good news and I have bad news. The good news is that you're graduating today. The bad news is only ten of you will survive.

They got fed up with having the fucking dark Lord and his pet monsters show up every year and ruin the schools reputation/ increse insurance premiums.