claim: Research is incapable of testing the validity of procedures.
evidence: Patrick Carl Shurmur -LRB- born April 14 , 1965 -RRB- is an American football coach for the Minnesota Vikings of the National Football League -LRB- NFL -RRB- .. Minnesota Vikings. Minnesota Vikings. American football. American football. National Football League. National Football League. He was previously the offensive coordinator for the Philadelphia Eagles .. Philadelphia Eagles. Philadelphia Eagles