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Assistant Coach

Steve Phillips joined the Williams men’s basketball staff in September 2018 after spending two years as the assistant coach at Washington & Lee University in Lexington, Virginia.

While at W&L, Phillips worked for head coaches Chris McHugh (2017-2018) and Adam Hutchinson (2016-2017). He was responsible for coordinating W&L’s national recruiting effort, on-court coaching, practice planning, game scouting, and player development. The 2017-2018 season ended with the Generals best ODAC finish since 1989.

Previous to his time at W&L, Phillips spent two years coaching at Mount Saint Mary College, his alma mater, in Newburgh, N.Y. A four-year player at MSMC, Phillips went from walk-on to senior captain and led the winningest class in school history (82-32) to the Skyline Conference Championship game his senior year.

"We’re excited to welcome coach Phillips to our program and the Williams College community," stated Kevin App. “Where he has been as a player and coach, success has followed. We’re excited and fortunate to have Steve working with our student athletes."  

A native of New Hyde Park, N.Y., Phillips graduated from Mount Saint Mary College in 2014 with Bachelor of Arts degree in History and Education/Special Education and went on to earn a Master of Science degree in Education from St. John’s University in 2017.

Assistant Coach

Justin Sosinsky joined Kevin App’s Williams men's basketball staff in the fall of 2019. He comes to the Ephs after spending the previous two seasons as a graduate assistant coach at Division III Messiah College.

During his time at Messiah, Sosinsky worked full time as an assistant coach and some of his responsibilities included overseeing the camps and shootouts, along with scouting opponents, player development, and recruiting. In his two years as an assistant, the Falcons had a 24-27 record and made the Mid-Atlantic Conference tournament for the first time since the 2014-15 season. Sosinsky also coached one 1st team All-Conference selection (2x), one 2nd team All-Conference selection, one 1,000-point scorer, and five Academic All-Conference selections.

Prior to working at Messiah, Sosinsky spent three seasons as an assistant at Ripon College, where the Red Hawks compiled a 50-24 record and made the Midwest Conference Tournament all three seasons. Sosinsky also coached one All-American (3x), one conference player of the year (3x), four all-conference players, three 1,000 point scorers, and Ripon's all-time leading scorer. In his last year, the Red Hawks won the conference tournament and advanced to the NCAA Tournament, while leading the nation in field goal percentage (.516) and 3-point field goal percentage (.452).

Along with coaching at Ripon and Messiah, Sosinsky coached boys AAU teams for the Wisconsin Blizzard and worked basketball showcases and camps for programs including Hoop Group, City of Basketball Love, Brian Butch Academy, and PGC.

The Princeton, Wis. native graduated from Ripon College in 2016 with a Bachelor of Arts degree in Elementary Education and he earned his Master’s degree in Higher Education from Messiah College in 2019. Sosinsky will serve as the Williams JV basketball head coach.