Keefe has five championship victories and is the only person in arena football history to win ArenaCup (af2) and ArenaBowl (AFL) titles as both a player and a coach.

Under Keefe's guidance, Spokane finished with the best record in the AFL (13–3 regular season) while producing the League's fourth-ranked scoring defense (52.7 ppg).

Keefe became the youngest coach in AFL history to win a championship, as the Shock defeated the Tampa Bay Storm in ArenaBowl XXIII.

In the opening round of the 2012 postseason, the change in culture was loudly put on display as the Blaze defense surrendered a mere 34 points in a victory over the top-seeded San Antonio Talons.

[3] In his first season as head coach of the Orlando Predators, Keefe directed the franchise to its first division title since 2006, coming within one win of a berth in the Arena Bowl.

In 2020, a new Albany Empire was launched in the National Arena League to begin play in the 2021 season, with Keefe announced as the inaugural coach.