Barnett Bank - about the same size as the Charlotte banks until the 90s - been more aggressive in its expansion/acquisition strategies in the 80s, as the Charlotte banks were.
Barnett was pretty agressive and gobbled up an astonishing number of banks in their time. They were a growth machine for the better part of a century. However, their acquisition strategy focused mainly on their (very lucrative) Florida market instead of trying to become a super regional like First Union.
To have forrged ahead with a super regional model.. the acquistion costs were very high at a time when Barnett's own cost structures (particularly in technology) had grown substantially and pressure on future earnings were high due to increased costs and lower margins (something like 20% of earnings were coming from a credit subsidiary the bank acquired... they were ahead very early on the private label market which is so popular now). The economies of scale they once enjoyed being Florida's largest bank had swung out of their favor and this put them at a disadvantage b/c they needed the retail side of the business to contribute more to the bottom line (hard to do when you don't have the same cost advantage).
Interestingly enough Wachovia, BofNY, Chase, SunTrust and Banc One all had been courting Barnett for quite some time. NationsBank had the best offer (by like something in the realm of $6 a share higher which was 4 times book) and apparently Charles Rice had a strong personal relationship with then NationsBank CEO Hugh McColl(Ken Lewis, the embattled BofA ex-CEO was the lead on the deal).
Nations basically stripped away all that made Barnett so popular to their customers which subsequently fueled the growth of several community banks and credit unions in Jacksonville. It's ironic then that BankofAmerica is doing the same thing all over again almost two decades later.