You don't listen to Crunchtime then WP. Robbo frequently tries to attribute Tigers success to Plough while Wallace humbly declines. I'm sure the amount of games the club got into Rance has helped his performance now days but I would credit more Leppitch's coaching and giving him the confidence of remaining in the same role he had been recruited for even more important.
Wallace gave Tambling plenty of games too.... 
I actually do listen to Crunchtime most weeks Stripes. I can say I have never really noticed him "frequently" trying "to attribute Tigers success to Plough while Wallace humbly declines". He talks up his mates and all journo's are guilty of that.
While Robbo likes to try and big note his views and pump up his tyres on things I take most of it with a grain of salt and strip it back to basics.
Robbo gets hyper on the wireless like he does nearly ever night on 360, you have to take the bluff and bluster out (that's what I do anyway) and then listen to his comments and determine whether they are worthwhile. His points (and yes sometimes he does have them if only once & awhile
) get lost amongst his bluff and bluster
But it can go the other way too. Have you ever heard Robbo whack Eade for the mess he left the Doggies list in by not playing the kids? Answer is NO and that's because the he's mates with Eade. But he's had no hesitation in whacking Ross Lyon and list mess he left at St Kilda - blustering Robbo picks his marks
Although I agree with you about who should be getting the bulk of the credit with Rance and his improvement putting game time into kids is invaluable early in their careers. It certainly was with Rance and his improvement so on that Robbo makes a reasonable point even if over the top to some.
But I will counter the invaluable arguement by saying that while it clearly works for some but obviously doens't for others
