If you believe the rumors, Brohm had Coy Cronk of IU and LCC lined up to transfer and then plans changed. Michael Mendez, a multi year player in the system, also left the team in the early Summer.
Both programs were definitely not in the same position. Minnesota was 8-5 in 2013, 8-5 in 2014, 6-7 in 2015, 9-4 in 2016, and 5-7 and 7-6 in Fleck's first two years.
In comparison, Purdue was 1-11 in 2013, 3-9 in 2014, 2-10 in 2015, 3-9 in 2016, and then finished 7-6 and 6-7 in Brohm's first two seasons.