Briggs and Morgan partner Troy Hutchinson has resigned to start his own practice focusing on food, beverage and agribusiness. Hutchinson left the Minneapolis-based law firm Feb. 5. He said he’s taking all of his clients with him, which include Wayzata-based Sparboe Farms Inc., Cannon Falls-based Mel-O Honey, Cannon Falls peanut butter brand PB Crave, Litchfield-based dairy co-op First District Association…