The 6-5 senior, a five-star recruit, also had offers from other elite programs such as Kansas and Arizona.
Cottrell, a four-star recruit, will play his senior year at Huntington Prep in West Virginia. And Isaacs, a five-star recruit, is transferring to Wasatch Academy in Utah.
Swift sat out the high school season after transferring from Durango to Desert Pines, but returned to competitive basketball during the club season with the Las Vegas Knicks, with whom he reached the under-16 championship game Sunday in the Fantastic 40 at the Tarkanian Basketball Academy.
The 6-foot-2-inch junior point guard has received offers from Long Beach State, Fresno State and UNR during his club basketball season with the Las Vegas Knicks.