Aundra Wallace wants to be clear: If he becomes CEO of the Downtown Investment Authority, there won’t be a sudden explosion of development and construction in the urban core.

“I don’t want to set any expectations that there’s going to be cranes and projects coming out of the ground,” Wallace said in a phone interview Friday. “We’ve gotta lay the groundwork for that. If we get one or two projects coming out of the ground that first year, we’ve overachieved.”

Wallace, 45, was unanimously…