If you're converting from a redraft to a keeper, first of all I hope you're not allowing teams to keep any players from the previous year UNLESS THE OWNERS WERE AWARE OF THAT BEFORE THE PREVIOUS DRAFT.Second, I don't think you should use any method except pure random draw for this year. If there are no keepers, then there's really no correlation between last year and this year (as I see it). Starting with next year, you can use any of a number of systems. My favorite is a hybrid NFL/other leagues approach:Teams can be ordered by record, total points, or a combination -- mainly, it depends on how your league rewards its owners. The champ and runner-up (i.e., most successful teams) should be the last picks. Bottom 3 or 4 teams determined by a lottery to prevent tanking late in the season.Finally, the number of straight "NFL style" draft rounds should grow as the number of keepers increases. If you're only keeping a few players, then only a few rounds should be NFL style. If you're keeping a dozen or even more players, then the entire draft should proceed NFL style.Above all else, try to get consensus on the approach that will be used, then clearly list it in as much detail as possible to prevent future grumbling, then stick by it as much as possible or you might as well not have a system.