Editor's note: This story first appeared on May 13, 2016, prior to the signing of Harrison Barnes to a four-year, $94 million contract.Recruiting talent in free agency can restock an NBA team, but it's like impulse buying. You see something you want and you fork out too much dough for it.Look at the best NBA teams, and virtually all of them have cultivated at least some of their key players from scratch.There's nothing like planting your own seed and watching it grow.For the first time in years, Mavericks fans have a legitimate chance of watching a young player mature.Justin Anderson was the 21st pick in last summer's draft and arrived with modest expectations.