What happened to both of them is that they weren't able to play against collegiates for the rest of their careers. Glenn had better timing though. IIRC, he still holds the record for the biggest rookie contract ever. Van Horn, OTOH, was drafted under the rookie scale. Salary figures are the only stats that really count in this world (ask Kareem, who had to play till 40 after his house burned down and his agent beat him dead).