You are assuming that 12th and 13th have similar wins, losses and percentages.
People are too ' hung up ' about the NO 1 Draft POsition.
History shows that NO 1 draft picks havent had the success their lofty position should indicate.
It is your prerogative to disagree, but at least suggest an alternative.
You sound like Gerard Healy on 3AW. He continually criticises, Dwayne Russel's suggestion for a lottery in the first round of the draft, but has yet to nominate an alternative.
There's a world of difference between a Murphy at #1 and a JON at #8. Maybe two worlds. Maybe a universe. Sorry to sound critical, but the flaw in your system leaps off the page. You can't implement such a system and hope that a plausible scenario never eventuates to expose it.
FWIW I'm all for a lottery system for the first 8 picks.