well thats fair enough its your opinion, personally i reckon rating an assistant is fairly arbitrary...do we rate a colliongwood guy coz he worked with malthouse...maybe, maybe not, doesnt necessarily correlate that he has ANY coaching ability.
Now if a fella has actually coached his own team and yielded a fair degree of success then that is in fact quite tangible that there is indeed some coaching nous. undoubtedly st.kilda felt same when appointing watters who won a couple of flags at subiaco