That's the problem mooch. With a short bench, guys with eligibility at many positions (zobrist, carpenter, etc) become very valuable bc you can cover daily holes easily with just 1 guy. With a weekly lineup those extra eligibility guys are less valuable bc you can find starters for each position at the beginning of the week (they still have extra value, but not nearly as much when you can't make daily changes). With a deep bench, you could find and stash a backup at all or most positions. In our league, you'd have certain guys suddenly become much more valuable than they are now bc each week they might give their owners 10+ points than they'd get in a weekly league. I don't see the sense in making that mid-season change. That's the kind of change that everyone should know at the start of the year.