First Selectman Rob Mallozzi stood behind the long kitchen counter at one end of the cavernous upper floor of the former New Canaan Outback Teen Center on Friday afternoon, hours after the 15-year-old structure had reverted to the town’s ownership following failed operation by a nonprofit organization. One stool at the counter appeared to have been broken and a pizza oven removed from the food prep area at Outback, once envisioned as an alcohol- and substance-free hub of local teen activity. “On my walk through today, it hits me again that this is a very unique space—one that is probably not the most adaptable to different and various uses, and it gives me even more pause about next steps,” Mallozzi said. Just what to do about the now-town-owned, rather oddly configured and centrally located structure, built 15 years ago—several years prior to the economic downturn, a headier era of corporate giving and donor dollars—is a major question facing New Canaan. In the short term, a dumpster is in order, according to the first selectman: A broken bench, collapsed ping-pong table, worn sofas and disused files lay about the split-level floors, while other fixtures—such as for lighting, movies and sound—appear to be in good shape.