While enrolled at Manhattan, Buscaglia spent five seasons as an assistant under his father and was a part of the Jaspers' 2003 Metro Atlantic Athletic Conference championship and NCAA Tournament team. He then moved onto Robert Morris prior to the 2003-04 season, spending five seasons as an assistant coach before being promoted to associate head coach in 2008-09. Between 2003-04 and 2004-05, the Colonials saw a 17-win increase from three to 20, which was then the third-largest turnaround in NCAA history. Buscaglia also served as head recruiter, bringing to Moon Township four Northeast ConferencePlayer of the Year recipients and 16 All-NEC honorees. During his time as an assistant and associate head coach at Robert Morris, the Colonials claimed four NEC Tournament titles and participated in four NCAA Tournaments, the 2011 WNIT, and the 2012 WBI. In his first season as head coach, Buscaglia guided the Colonials to their seventh NEC Tournament championship and fifth NCAA Tourmament appearance, finishing with an overall record of 22–11. He was named Brenda Reilly NEC Coach of the Year after Robert Morris captured sole possession of the NEC regular-season crown with a league mark of 14–4. Buscaglia led the Colonials to a school-record 25 victories in the 2017-18 season, claiming a share of the NEC regular-season crown along with a berth in the Postseason WNIT. For his efforts, he was named Brenda Reilly NEC Coach of the Year, becoming just the third coach in league history to collect the plaudits in consecutive campaigns. In 2018-19, Buscaglia led RMU to its sixth NCAA Tourmament with a 65–54 victory over Saint Francis U in the NEC Championship Game. The win also gave the Colonials their eighth NEC Tournament title, which came off a third straight regular-season championship and seventh all-time. RMU finished the season at 22–11 overall and posted a 16–2 mark in conference - a record that included the program's best NEC start at 11–0. Buscaglia again claimed Brenda Reilly NEC Coach of the Year after guiding a team that featured 69.2 percent underclassmen to the league mountaintop, standing alone among the league's coaches as the only one to claim the award in three straight seasons. In December of 2019, the Pittsburgh Post-Gazette listed Buscaglia as Best Coach in its College Basketball Decade in Review. The fourth-year head coach took home his fourth consecutive Brenda Reilly NEC Coach of the Year honor - matching Bill Sheahan of Mount St. Mary's and Ed Swanson of Sacred Heart for the most in league history - as Robert Morris finished the 2019-20 season with a 23-7 record and 17-1 mark in conference play. The Colonials won their fourth consecutive NEC regular-season title and matched a program record for conference wins, tying the 2009-10 side that also went 17-1. RMU established new school standards for scoring defense, scoring margin, and field goal percentage defense, and ranked sixth in the NCAA in scoring defense, 10th in three-point field goal defense, 11th in turnovers forced, 12th in field goal percentage defense, 17th in turnover margin, and 20th in steals per game.
