I started doing team by team depth charts here last week, part of my process for fine tuning projections, and then I stumbled on the site mlbdepthcharts.com. Jason Martinez does a fantastic job keeping up with transactions, posting expected lineups and rosters for all major and minor league teams.
He also sells a subscription service that offers additional information and charts and lists, that I haven’t yet seen.
Once spring training gets rocking I’ll post stories here about roster battles and questions, but if you want to see projected starters and lineups, go to mlbdepthcharts.com.