Part time Teaching positions for Big Mac, Octavia, and Dr. Hooves

[BrawnyCharger 513]

Although they didn't get the position for Vice Headpony in A Horse Shoe In, How likely is it that Big Macintosh, Octavia Melody, and Dr. Hooves could still be hired to part time teaching positions at the Friendship School? 

Dr. Hooves could teach science to the students. Octavia could teach music. and Big Mac could teach manual labor classes among others.

What do you think of this possibility?

[ZiggWheelsManning 10,450]

That would complicate a lot of energy into the stuff they love doing  

[Landi 600]

I feel like even part time would take away a lot of time from these pony's actual jobs. Hiring ponies who already have their own careers (like the mane six) was just a bad idea, and it didn't make any sense to me (jut like the school of friendship itself). So I don't think these three should bother working at the school.