What economic approach would actually work?

[Greyblades]

Design wise Russian equipment was indeed up to par and even good, in some cases captured russian weaponry was employed by german units, the problem was that for a while the methods of production in the soviet union was hit and miss meaning they were prone to defects.

Of course the main factor of german sucess was stalins inability to see germany coming meaning the majority of russia's professional soldiers were caught literally half a world away from the front in 1941.