I have followed DP's career since his first year as the HC at Williams.
DP is willing to start freshmen.
He started a freshman at PG at Williams in his first season coaching the team. He also started a freshman at SG. By DP's third season, that team won the D-3 National championship. The PG wound up with over 800 career assists and scored 1,500+ points on his career.
When that PG graduated, DP started another freshman at PG who started for the next four years. In DP's 8 seasons at Williams, he had two four-year starters at PG. One other point -- DP was a PG at Williams. The PG position is a key position in DP's offense.
His first recruiting class at Bucknell had three starters as freshman. That core group won three Patriot League regular season titles and went to two NCAA tourneys. This past season at Bucknell, he started three freshmen (a PG, SF and C). That team won the Patriot League regular season title.
I have no idea of the returning talent and have no idea how good the players are in this recruiting class. DP's teams will play very solid fundamental basketball. His teams typically rebound the ball on defense, do not turn the ball over on offense and do not look to force steals or turnover on the defensive end. He plays m-t-m defense almost exclusively, so players will need to be able to defend if they want to play. Case in point - On this year's Bucknell team, DP had a very skilled (offensively) SF who did not start immediately because he struggled initially on the defensive end. Once DP was comfortable that this player could compete on the defensive end in college, he inserted the player into the starting line up.
He will tweak his motion offense to maximize the talents of his players.
One underrated aspect of DP's coaching is his ability to develop big men. At Bucknell, Muscala came in as an under the radar, unheralded recruit. He had some skills but he definitely developed under DP's tutelage into an NBA player during his four years at Bucknell. In addition, the center on DP's national championship team at Williams played sparingly as a freshman in DP's first year. He became a first team All-American by his junior and senior years.
I expect there will be a lot of growing pains this next season. I would preach patience. DP has been successful at every level in his coaching career. I fully expect him to build the GM hoops program back to the top tier of the A-10. It will take time though...