Sounds a lot like Dennis Felton's situation when he first arrived.
The difference is significant nonetheless. Horn has somewhat of a bench, whereas Harrick left Felton with an empty one. Horn's team is not under the cloud of tons of negative publicity and upcoming NCAA sanctions. The 5/8 rule, which limited the number of players that could come in at any one time, is no longer in effect.
With that ssid, if Horn makes it to the NCAA's in five years, I will be very impressed.