Quality of SEC offensive execution

[USCNowAndForever]

Watching some past SEC games, it is interesting to me how often SEC teams fail to execute offensive plays correctly.

Examples:

2009 SEC Championship game

-Mark Ingram runs the ball to the right down on the goal line with Terrence Cody lead blocking. Cody barely makes the block and flies into the endzone and almost falls flat on his face.

-Tebow has Hernandez wide open behind the defense in the upper right corner of the endzone, and yet Tebow tries to throw more of a bullet pass and it is intercepted by Javier Arenas.

2012 USC-LSU game

-I have covered this one several times on here before, but USC's TEs fail to execute the Mesh play correctly.

2012 USC-UF game

-I have also covered this one several times on here before. USC's two right receivers run into each other while trying to run a Seam/In route combination.

2012 SEC Championship game

-UGA's running back fails to pass protect correctly, which leads to a Bama linebacker tipping Aaron Murray's pass.

These are just a few examples.

No one is perfect, but considering how well the SEC is known for football, not to mention the quality of coaching, how is this sort of stuff so commonplace in the SEC? Perhaps SEC teams tend to be so good at defense that there is no incentive for them to be better at offense?

Keep in mind that these sort of errors are usually not because of something the defense did, but rather they are execution errors where the offense beat themselves, especially with USC's TEs and WRs not running plays correctly.