Assume Stalin doesn't get the throne, but someone who supports the NEP does. The NEP was IMO quite successful in restoring the Soviet Economy.
So, what happens to the Soviet Economy now? Will it collapse the way it did (Because of the 'horse' i.e., the Soviet system of economy) or will it collapse differently (Because of the 'jockey' i.e., the Soviet leader at the time)? Or will it not collapse?
So, what happens to the Soviet Economy now? Will it collapse the way it did (Because of the 'horse' i.e., the Soviet system of economy) or will it collapse differently (Because of the 'jockey' i.e., the Soviet leader at the time)? Or will it not collapse?