DOVER, Del. (AP) — When new vice president and general manager of Bally’s Dover Casino Resort Nick Polcino walks the gaming floor, he rarely does it in a straight line.He can often be seen checking in with housekeeping personnel to see if they need anything, then waiving to the card dealers or stopping to say hello to guests. It isn’t a show. While he’s greeting his people and guests, he’s noticing where the bartenders are standing and if they are ready to serve customers; he’s measuring up table games for optimal placement; and he’s watching how guests travel through the casino.