Melbourne coach Paul Roos says it is time to revert to the original father-son system.

Roos believes the plan to introduce a new bidding structure is almost discouraging what was one of the charms of the game.

Todd Viney's son Jack is now an important member of Melbourne's midfield. The two are pictured in 2010. Credit:Sebastian Costanzo

Under the proposed plan before clubs, the league would establish a draft value index that assigns a points value for each selection. These points are calculated using statistical analysis of player salaries from 2000 to 2014, which the league says shows the relative market value of players at each draft.

The present bidding system is retained, with clubs bidding or nominating for father-son as well as academy picks. But rather than the nominating club - such as the Swans last year with academy selection Isaac Heeney - only giving up its next available pick for the player, which drew criticism, the nominating club would now need one or more subsequent picks using the value of the points rating.