TAMPA, Fla. — One of Gene Michael’s tenets for building championship Yankee teams was left-handed power in Yankee Stadium, which was woefully absent in recent years. But while the Yankees may have addressed that void in a big way with their acquisition of Juan Soto from San Diego, in doing so they violated another Gene Michael principle which was never give up good prospects for a player who isn’t signed. Considering the circumstances, the Yankees have never made a trade with more potential risk than the deal for Soto in which they sacrificed Michael King, who was projected to be their No. 3 a…