The New England Patriots and Seattle Seahawks both grew in strength during the long National Football League season ahead of Sunday’s Super Bowl, mixing and matching until they found the right combination for success. Polsinelli, a fast-growing Am Law 100 firm profiled by The American Lawyer two years ago, is similar in some respects.

Polsinelli protects its home turf, as seen when W. Russell Welsh, chairman and CEO of the Kansas City, Mo.-based firm, recently spoke out against out-of-state legal giant Littler Mendelson’s decision to open a back office in Polsinell’s backyard. Polsinelli, which in the past has tweaked regional rivals by raiding them for new acquisitions, has continued to be active on the hiring front, as noted by The American Lawyer’s most recent lateral report released this past week.