Greg Fennell might not be as tough-looking as the Commander Erwin Smith, but he can mobilize his troops with the same effectiveness like the “Attack of Titan” character. In a recent Saturday in the Sheraton Phoenix Downtown, the 50-year-old businessman and Arizona resident is doing that during an all-hands meeting of staff to discuss Saboten Con, the local anime and Japanese pop-culture festival the couple with Stacy have hosted since 2008…