By Chris Rosvoglou The expectation around the league is that Jimmy Garoppolo will be traded this offseason. ESPN’s Mike Tannenbaum, however, doesn’t believe that would be a smart move for the San Francisco 49ers. “When you look around the landscape of the league, there are about a dozen teams that need quarterbacks,” Tannenbaum said on Get Up this Thursday. “There’s just not enough of them. We’ll be sitting here three or four weeks from now saying ‘I can’t believe Mitch Trubisky got this.’ And If I’m the the 49ers, I am not trading Jimmy G under any circumstances.” Tannenbaum believes Garoppol…