On April 2, 2013, Loos announced that he would relinquish his position as director of athletics to focus solely on coaching basketball.[3] Derek van der Merwe was announced as the successor to Loos on June 5, 2013.[4] On March 5, 2016, the Loos-coached Governors won the tournament championship of the Ohio Valley Conference, thus qualifying to participate once again in the NCAA Division I men's basketball tournament.
The following season, which ultimately proved to be his last as head coach, was set against the backdrop of a battle with colorectal cancer. During the 2016 offseason, he underwent surgery to remove the malignancy. A malignant lymph node was found during the procedure, and he began chemotherapy. Loos was forced to take a medical leave in January 2017, missing four games.[5][6] After the Governors failed to make the 2017 OVC tournament, ending their season, Loos chose to retire. The university announced his decision on March 2, which was followed by a full press conference on March 6.[1]
National champion
Postseason invitational champion
Conference regular season champion
Conference regular season and conference tournament champion
Division regular season champion
Division regular season and conference tournament champion
Conference tournament champion
^Wilson, Colby (January 17, 2017). "Loos to return to APSU sideline Thursday" (Press release). Clarksville, Tennessee: Austin Peay Governors. Archived from the original on April 13, 2019. Retrieved January 25, 2017.