Not to beat the dead horse but trading any of your top prospects for a bullpen arm this early is dumb, especially when you have other expendable pieces that may net you what you want. Bell is not what the cubs need right now, other than sending Shitmardjza down they need to ride the bullpen out for atleast another 3-4 weeks. They can make minor tweaks from there. Come June is they are needing to add a arm look at people like Coleman, Burke, or other solid prospects to get you a solid bullpen arm. This team will be fine until then.