Every January, as JCK’s editorial team contemplates the next iteration of the magazine’s attention-grabbing Power List franchise, we use the prior year’s list as a jumping-off point to brainstorm all the people we think deserve a mention this year. Then, we slowly whittle the names down to the most newsworthy among them. The exercise is fun, provocative—and not without some interoffice squabbling.If the comments we’ve received in the past are any indication, we expect the squabbles aren’t over. Before you see whom we singled out in 2015, however, here are a few things to keep in mind:The power package is composed of two parts. The first part changes year to year: In 2013, we profiled 20 power brokers under the age of 40; last year, we spotlighted 15 of the industry’s most powerful groups; and this year, we take on the trade’s Power Designers.The second part is the Power B