Greg Abel is starting to make his mark as Warren Buffett's successor

Warren Buffett (left) and Greg Abel, who succeeded him as Berkshire Hathaway CEO this year. Nati Harnik/AP, FileBrendan McDermid/REUTERS Greg Abel, who succeeded Warren Buffett as Berkshire Hathaway's CEO, completed his first takeover. Abel plans to unite Taylor Morrison with Berkshire's 15 similar homebuilders. He's starting to make his mark as CEO with this deal, the Alphabet wager, and his new team. Warren Buffett's successor, Greg Abel, just completed his first acquisition as Berkshire…