It's not technical knowledge. My (IT outsourcing multinational) company has a site-wide IM app, and I've talked with tech support guys from India. The problem is that they are tossed from company to company every three months or so, they have next to no on-site training, and by the time they begin to know the codebase/ platform/ group organigrams they're sent to the company next door in the big tech campuses in Bangalore, Chennai, Pune or wherever.

If it's the same with Russian techies, I'd be very wary of this move.