Walt Disney Co. is now a streaming business.Burbank’s biggest company and a major tenant of office space made this declaration in October. So how will this switch impact the Tri-Cities’ commercial real estate sector, where Disney leases hundreds of thousands of square feet of space?“That’s a huge employer in the Burbank area,” said Kirk Lesh, assistant professor of Economics at California Lutheran University in Thousand Oaks. “’But the question is: How much further do they go? How much more reconfiguring?”Read the full story in the Jan. 18 issue of the San Fernando Valley Business Journal.