As a premiership coach and based on his record, Dimma is a champion coach. He deserves all the accolades for breaking our 37 year long drought. However, he needs to win more than one flag to become a "Great" IMO. Hoping he does this year
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Stats wise, he is our sixth best ever coach:
Hafey - 4 flags from 5 GFs, 15 wins from 20 finals, 70% win rate.
Minogue - Back-to-back flags, 6 wins from 7 finals, 58% win rate.
Hughes - 1 flag from 5 GFs, 7 wins from 12 finals, 73% win rate.
Bentley - 1 flag from 2 GFs, 4 wins from 8 finals, 65% win rate.
Dyer - 1 flag from 3 GFs, 4 wins from 10 finals, 61% win rate.
Hardwick - 1 flag from 1 GF, 4 wins from 8 finals, 55% win rate.Jewell - 1 flag from 1 GF, 3 wins from 3 finals, 47% win rate.
https://afltables.com/afl/stats/coaches/richmond.html