Under Armour CFO Brad Dickerson on footwear, Ray Lewis and UA's new Harbor East store

It is clear 2013 will be a big year for Under Armour Inc. But don’t expect the Baltimore sportswear company to make a lot of changes to its tried-and-true formula of apparel success.

That was the message from Brad Dickerson, Under Armour’s chief financial officer, in an interview Thursday with the Baltimore Business Journal. Dickerson talked to the BBJ after Under Armour released it’s fourth-quarter earnings report. The company saw a 54 percent spike in profits over the last three months of…