Guthridge joined Smith's staff at UNC in 1967 and spent three years as the head coach after Smith retired in 1997. Smith died in February at the age of 83.
North Carolina went 80-28 in Guthridge's three seasons and went to the Final Four twice. He won the Naismith College Coach of the Year award in 1998.
"Coach Guthridge is the best I have ever seen in selecting potential in high school players," Smith once said, according to the team's website. "He has a keen sense of which ones will be very good players and which ones may be overrated. He has saved many scholarships when he has suggested backing off certain players, and of course, has selected some great ones who matriculated at Chapel Hill."
Guthridge played as a guard at Kansas State from 1957–60 and was a member of the Wildcats' 1958 Final Four team. When he led the Tar Heels to the 1998 Final Four, he became the sixth man to make the Final Four as a player and coach.
Guthridge's health had deteriorated in recent years. He developed an incurable heart condition that led to dementia and moved into an assisted living facility near the North Carolina campus.
- Dan Gartland