Complex sentence: To help Malcewicz compete with the upstart promotion, several other NWA members sent their top stars to NWA San Francisco, but ultimately Shire prevailed and NWA San Francisco folded in 1962.
Split into simpler sentences: To help Malcewicz compete with the upstart promotion, several other NWA members sent their top stars to NWA San Francisco. Shire would ultimately prevail and NWA San Francisco folded in 1962.