I understand that Yahoo is looking for new ways to entice users to subscribe to Fantasy Plus, but the operative word here is "entice." There should be incentives on top of basic functionality that make the subscription appealing, and taking away a core function of the platform -- setting weekly lineups -- is going to drive people away far more than it's going to drive new subscribers.

Setting weekly lineups is not, and should not, be a bonus feature. This is how most users set their lineups, especially when juggling multiple leagues and especially when they know they won't have access over the next day(s). By locking this behind a subscription, you are objectively making the platform worse for a majority of users, and when those users leave Yahoo for a more functional and user-friendly alternative, you are losing any chance of them subscribing. You are also losing the possibility of them spending money in other ways, such as daily fantasy contests.

Check any fantasy-based online forum and you'll see an uproar over this change. Do not only the right thing, but the business savvy thing, and bring this core feature back--for everyone--before users start looking elsewhere.