I've seen this a few times. The offshore team will either get better (because you've taught them CS101) or they will produce low quality source that'll be poor

I've seen this a few times. The offshore team will either get better (because you've taught them CS101) or they will produce low quality source that'll be poor unless you personally read each and every single line. Either way your time is what the company is going to spend in addition to the amount they are paying the offshore team. Do you want to constantly check line after line of horrible source code and teach the offshore team? If you are okay with that then I suggest getting a raise for such an arrangement. Heck, I say get an assistant too because two sets of eyes covering the work of many under qualified hands is gonna make things easier for you. Bottom line, the company is padding the low cost of the offshore team with your time, patience and expertise. Get some more cash for this and any extra help they'll hire on for you locally.