I don’t know if it can be put in such simple terms, but it seems at times that NFL teams can take for granted what they have until they start to lose it. The Pittsburgh Steelers were criticized of such during the late 2000s as their quality offensive line eroded and they were left with a shambles that took years to rectify.
Eventually they did, but it took a lot of major investments, both in high draft picks and in the coaching staff. They were able to turn a weakness into a major strength, forming one of the top offensive lines in the entire league for the better part of the 2010s.