People may have better memories than me but, in the summer break...
2017 Robins brought in 10 new players (inc Hyam who was notionally for development). Of those 6 have been good, two (Biamou and McDonald) were good in parts, and there were two duds, O'Brien & Vincenti. That gives Robins a success rate of 70%, which I would say is very good.
2018 Robins bought seven players and this time the performance is much more patchy - two have been good, Mason and Hiwula, four have been good in parts (Baka, Brown, Westbrooke and Chaplin). Ogogo was a dud. That is a success rate of 57%. Which I reckon is about par. However if you add in the loans of Thomas and Sterling then his success rate is 67%
2019 he has bought 9 including Pask, but excluding Bartlett, a number inflated by the relatively unusual need to find two goalies.