In another thread I posted the Hawthorn coaching stats for Clarko, Jeans & JK Snr prior to this season:
http://www.bigfooty.com/forum/threads/afl-preview-of-hawthorn-2014.1053260/#post-32118571
Stats post-2014 season:
Kennedy - 14 seasons, 299 games (win % 60.53), 6 finals series, 5 GFs, 3 flags
Jeans - 9 seasons, 221 games (win % 71.94), 8 finals series, 6 GFs, 3 flags
Clarkson - 10 seasons, 233 games (win % 62.02), 7 finals series, 4 GFs, 3 flags
Clarko's win % has gone up 1.5%, but still trails Yabby in that regard. Has the best record of the three in terms of flags / GFs.