Which means he must have had some success as a coach at some level prior to taking over Richmond. How else would he have got the job? It's ridiculous to rule out any coach who never won a flag as a player, but it would be nice to know that they coached their own side to one at a lower level or as an assistant at the elite level before they took over as senior coach of an AFL side.
Tom Hafey sure did. Coached Shepparton to 3 flags in the Goulburn Valley League before coming back down to Richmond.
Exactly, proved he could coach his own side and was very successful in doing so. Granted the talent difference between the leagues wasn't the chasm it is now, however it's form you can't ignore.
I'm fairly certain that Ken Hinkley is the only favoured candidate at the moment that has coached his own side at a lower level and from memory he's won premiership(s) doing so as well. He's also an assistant coach in an AFL premiership side (could be dual premierships), he is their "attacking coach" who formulates their offensive strategy, which is the best in the comp.
I would hardly say Hinkley was a brilliant player, he was a member of three losing grand finals sides but he was no star, however he's would be the highest credentialled untried coach in the running, form not too different to Hafey back in the day really.