Warren Anderson. Coach Anderson is a strength and conditioning coach in Phoenix, AZ. He is the founder of Rehab Plus training center in Phoenix (visit them at www.makeplays.com). He has over 25 years of experience training athletes at every level. Some of his notable clients include Donovan McNabb and Simeon Rice of the NFL. He is credited with starting the first NFL combine training camp in 1985 and continues to prepare college athletes for their professional careers.