"no business even attempting a 121 ground school."

Ground school? Go for it.

121 F/O in a 70 pax jet that says Delta on the side of it? Well, that's another story. It puts line Capts in the position of baby sitter and flight instructor. Now, to a certain degree, that's always been the case, but the bar has gone to low when they start taking wet commercials from an RJ program.

Of course, that would just be my opinion based on my experience. I guess it's a brave new world, now. Glad I'm sitting it out...