Early 2011 DB TiersIn the past, I've resisted doing rankings before March. I like to base my first set of rankings on a full set of projections and it's very difficult to put together projections that seem accurate until after teams have fired and hired coaches and defensive coordinators and have been through the first wave of free agency. I'm now tending more and more toward a hybrid projections and tiers approach with my rank lists, and it the bucketing process "feels better" than listing names 1-X.The tiers won't include any 2011 rookies and will be deliberately less precise at the back end, but it'll hopefully still be a worthwhile process. Feel free to pepper my inbox with your agreements and disagreements. It should be fun to see how this effort compares to the pre- and post-draft efforts next spring.The DB group has been very interesting this year. Though NFL personnel departments clearly (and rightly) favor safeties that can cover whenever possible, there’s still room for a safety that can play in the box and support the run when they aren’t tasked with deep half coverage. As a result, three seasons after only one defensive back finished with 80 or more solo tackles and just five finished with more than 170 fantasy points (FBG default scoring), the 2010 DB group already has seven over 80 solos (with at least that many others projected to top that amount) and nine with more than 170 fantasy points through 15 games.But it’s still not a trustworthy group. Effectively the third level of defense, defensive backs are very sensitive to scheme issues, the flow of any particular game and surrounding cast. Every year, more than 50% of the previous year’s “stud” safeties free fall from the top tier to the marginal starter tier. That’s not to suggest that there aren’t consistent fantasy performers to be found, just that you shouldn’t be too attached to anyone without the talent to be scheme diverse and/or the express trust of a safe coaching staff. My general philosophy is to identify a handful of those relatively sure bets, then look for upside to present itself during OTAs and training camp.With that in mind, these are the safeties and cornerbacks that I think are the safest bets for 2011 and a few early upside targets. There are certainly others that will finish as top 20 players, but there’s something about them that has me worried about their prospects.DB1 (LaRon Landry, Tyvon Branch, Yeremiah Bell, TJ Ward, Eric Berry, Bernard Pollard, Roman Harper)These are the safeties I think have a better than 50% chance to top 80 solo tackles next year. There’s risk here – Landry may be subject to a scheme and role change, Pollard may not fit the defense as well if there’s a new coach in Houston, etc. – but strong track records to fall back on. If you like to grab a top DB early, you’ll probably want to target one from this tier.DB2+ (Patrick Chung, Donte Whitner, Antoine Bethea, Louis Delmas, Troy Polamalu, Michael Griffin, Eric Weddle, Adrian Wilson, Quintin Mikell, OJ Atogwe)Antrel Rolle, Michael Huff, Dawan Landry, Chris Hope and Earl Thomas might deserve mention here, too, among a large group that either have 75+ solo upside or 65+ solo with significant big play upside. Plenty of risk here, but it’s unlikely that any of these players will see a major drop in playing time next season. Below this group is a monster group of safeties that I’d consider DB3s with weekly DB1 upside. That tier includes guys who may put up six or more solos some weeks, but less than four more often than not. Charles Godfrey, Abram Elam, Dashon Goldson, Kerry Rhodes would fit into this tier.Safety Watch List (Darcel McBath, Morgan Burnett, Taylor Mays, Kam Chancellor, Akwasi Owusu-Ansah)Even more risk on this list, but there’s a strong chance that the next Yeremiah Bell, Tyvon Branch or Quintin Mikell will come from this list next year. Some are strictly in the box talents (Mays, Chancellor), others have nice two-way upside (McBath, Burnett).Corners Worth Considering (Richard Marshall, Charles Woodson, Cortland Finnegan, Joe Haden, Charles Tillman, Terrell Thomas)I’m partial to corners that support the run and have better than average ball skills. I’m still not entirely sold on Thomas, but he’s a reasonable investment. I think Haden has already positioned himself as a strong fantasy play in 2011. There are lots of others worth watching and guys like Brandon Flowers, Alteraun Verner, Devin McCourty and Tramon Williams are barely on the outside looking in for now.