Brisbane's Michael Voss says coaches who deliberately throw AFL matches should be banned for life, while North Melbourne's Brent Harvey has questioned the manhood of anyone who would "tank" games.

Lions coach Voss doubts any of his AFL counterparts would be involved in tanking.

But he has joined the growing ranks of those demanding less incentives for struggling teams to lose games by calling for an immediate change to drafting regulations.

Voss said he couldn't fathom any coach or player entering a match and thinking: "I don't want to win".

"It would be shocking - I want to win Monopoly, let alone coach an AFL team," he said on Monday.

"I would be very confident to suggest there's never been a coach who has come into a game and said we want to lose this game. And if there is they should ban him for life."

Kangaroos skipper Harvey said he didn't believe tanking was a problem, questioning what kind of person would deliberately set out to lose a match.

"I don't think tanking happens in footy. Whether the coach puts me at fullback, I'll try just as hard as I do if I'm on the ball," he said in Melbourne on Monday.

"I want to win every single time. If you want to create a winning culture, how important is it to young guys (to win)?

"You can't be a man and go out to play a game of footy, and be rolling over."

The latest tanking claims following Melbourne coach Dean Bailey's at-time unorthodox tactics in experimenting with players out of position in Sunday's close loss to Richmond.

Melbourne can only afford to win one more match this season if they want to earn a priority pick in this year's draft.

The Demons would have been in major danger of losing that right if they had beaten Richmond.

Voss said public perceptions surrounding the "ugly" issue had meant action was needed to solve the current blight on the game, advocating a lottery for the bottom four teams for the first draft picks.

"Let's remove all doubt with that and put a lottery in and say the bottom four sides go in a lottery and if your name comes out then happy days," Voss said.

"They've got to change the system, absolutely.

"I just think the competition, at this point in time, there is a perception that you need to bottom out to build and there's a perception that tanking exists, whether it's in its purest form or managing players."

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