Each front office has strengths and weaknesses, with the great organizations obviously doing the best job at minimizing their shortcomings. The blind spot of an organization is one area where they repeatedly make the same mistake or are unable to identify a possible resolution to the long-standing problem. In most cases the front office is unable to properly evaluate a certain position on the roster, the draft and in free agency.
Perhaps the easiest example is the New England Patriots. They are considered one of the most outstanding teams and franchises in the whole NFL. They haven't won a Super Bowl in eight seasons but success is relative and most teams can only dream of a 12-15 year period that includes continual championship contention. Still, even the Patriots have a blind spot. Bill Belichick is lauded for his personnel moves both in free agency and the draft (moving up and down frequently) yet he has been unable to fix the Pats' secondary for several years. In the past three seasons New England has finished at best 29th out of the 32 teams in pass yards against. Certainly that stat alone cannot provide definitive proof of how bad the secondary has been, but consider as well how many personnel moves the team has made in an attempt to fix the secondary without finding a solution.
The Titans have had their own blind spots to deal with. For the later half of the Fisher era the team's receivers were continually a weak spot on the team. In 2005 for example the position consisted of Drew Bennett, Brandon Jones, Roydell Williams, Courtney Roby and Tyrone Calico. Just a few seasons later and coming off a 13-3 season, the receivers were Justin Gage, Brandon Jones, Justin McCareins, Lavelle Hawkins and Chris Davis. They are listed in order of receiving yards, so consider that in the best Titans season in the past nine years, the receiving leader was Justin Gage. Justin. Gage. In this case the blind spot was a failure to properly evaluate receivers. Mid- and late-round receivers came to the team "filled with potential" and "under the radar" and left as just another name to add to the scrap heap.
More recently, the team's offensive line had deteriorated from the dominant 2008 edition. Years after the team was seemingly able to run the ball at will, that strength had become a severe weakness. This blind spot was a failure to predict and then later on recognize the problem. The team would hand Mike Munchak late round picks and undrafted free agents and ask him to craft them into starters. Sometimes he accomplished that goal but you are always working against the odds. If the Titans had valued offensive linemen a little more and identified the need earlier perhaps that drop off from 2008 could have been prevented or reduced.
The key with a blind spot is to not only find out where it is, but then to change the root of the issue. In 2009 the Titans took Kenny Britt in the first round. Another first round pick was spent on Kendall Wright in 2012 and Justin Hunter was snagged with the 34th pick in this year's draft. For a team that hadn't selected a first round receiver since Kevin Dyson the move to spend three high picks on receivers shows a clear shift - a desire to choose from the draft's top-ranked receivers in hopes that they are more likely to pan out than their later round peers. The Titans also recognized their blind spot at offensive line. Ruston Webster signed the best offensive guard on the free agent market and followed that up with Chance Warmack with the tenth overall pick.
Every front office has blind spots but it is a good sign that the team is trying to resolve those issues - most importantly by operating a little differently.