This is a great insight. There are 2 major schools of coaching and each have very valid schools of thought. To put in simple terms one school believes in Keep It Simple Stupid (KISS). That execution is paramount. The other is "dazzle them with your bull sh!t". In other words those who believe you out maneuver and gain advantages with your X's and O's. ALL offensive and defensive systems fall somewhere in between those 2 schools of thought.
Tony Dungy and Tom Moore were strong believers in systems that valued execution over artifice. That's why Wayne ALWAYS lined up on the left side. They believed that when their players saw the game from the most familiar places their execution would make whatever alignment advantage you hoped to get moot. This goes back to the Johnny U/Raymond Berry combo, who defied you to beat their execution even if you knew what was coming.
I know its not sexy or satisfy our desires to play chess with football players, but it's a been a very successful philosophy that has created a lot of winning teams for Dungy and Moore. It also make you understand why people can't simply do what BB has done very easily. You see, BB has made it possible through SOME method of teaching and language, get HIS players to the point where they can consistently be moved all around, from week to week, and STILL execute to a high level. Maybe not to the level that the guy who does the same thing over and over, but high enough that the advantage he gets by alignment trumps the extra execution you get from repetition.
Again, as I've said over and over, what BB does is easy to explain, but very hard to execute on the field. It also explains the BB/Josh connection, since McDaniel's offensive system has evolved much in the same way BB's defensive system (as run now by Matty P), did. Some magical combination of simplicity of communications and complexity of design woven together to great success.