I'm not sure how that can be a vexing question. Right now they have Lester, Darvish, Hendricks, Hamels and Quintana as starters. Almost everyone seems to feel that at LEAST one, and perhaps more will have problems, either due to injury or old age. If Chatwood has cured his control problems, either he or one of the above will replace Montgomery as the reliever/swingman. And if all six are doing well by July, one of them could bring back pretty good return in a trade. I wish the Cubs had been faced with such vexing problems over all of the 60 odd years I have followed them.