Colorado football: Spring practice preview (staff changes, heat index, defensive overhaul, the Montez factor and more)

Key losses: TB Philip Lindsay, CB Isaiah Oliver, OT Jeromy Irwin ... enter the Pac-12 in 2018 because of his proven playmaking ability — McMillian rushed for more than 2,000 yards with the Hokies — and the void he must fill. McMillian won’t join ...