It seems to me the Pats are in an unusual position with their linebackers. In most areas, if there's a problem that should be addressed, there's a clear solution to it (in theory, at least) even if acheiving that solution is difficult: the WR group, say, is thin. The safety position needs an upgrade, etc. Linebackers seem a little different. Mayo, Spikes, and Hightower are all solid players. Hightower was just a rookie, and will hopefully take a leap next year. But when he was drafted, the comparison to Spikes was made. And sure enough, as a starting group these guys all seem to share the same problems in coverage/space. That issue is continually noted, but I'm not sure what should be done about it. A guy like Fletcher would be better in coverage, for example, but to this point he hasn't been seen as a starting caliber linebacker. Obviously you have guys rotate in and out, but at a certain point the hope is that your starting guys will be able to handle any situation. So what's the answer? Shift back to the 3-4? Understand that it's hard for any positional grouping to be perfect? Consider moving a guy like Spikes to find someone better in coverage?