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Harvin, who is tied for the NFL lead with 60 receptions, said offensive coordinator Bill Musgrave had taken the past few days, "to really evaluate our offense and what we could do better."
One thing the Vikings worked on was introducing new concepts to the same plays the team runs and moving the personnel around.
Musgrave's evaluation went well beyond addressing Ponder's poor play of late and also put a focus on what the wide receivers should be doing.
Much of that included a simple focus on fundamentals that have been lacking. Things such as route running, making sure receivers are getting the proper depth on their routes, focusing on Ponder looking on the right side of the read and ball security.
"It's been fundamentals that have been killing us," Harvin said. " ... It's definitely little tweaks. But those little tweaks, they end up (being) really big, especially in games like we just (had). We've got to hold onto the ball, so ball security will be a must going forward."