Daily Red Sox Links: Triston Casas, Nick Pivetta, J.A. Happ

It is just about the worst kept secret in baseball that the Red Sox are in desperate need of starting pitching. The question is: How many arms do they need? (Christopher Smith; Masslive)

There are, of course, a ton of options at multiple different tiers to choose from for the rotation. Could J.A. Happ be a fit on the cheap end? (Jen McCaffrey; The Athletic)

Or, perhaps you prefer a pitcher who is a bit younger and carries some more upside? In that case, maybe Taijuan Walker would be the better fit. (Ricky Doyle; NESN)

There are some in-house options that have some intrigue as well, to be fair. Nick Pivetta, for example. (John Tomase; NBC Sports Boston)

Most of the focus this winter is on the major-league roster and what holes need to be filled, but the growth of the farm is also under a microscope as well. And Rob Bradford writes that the top of that farm, Triston Casas, is a very important piece of this rebuild. (Rob Bradford; WEEI)

Ian Cundall has his latest update from Instructs. (Ian Cundall; Sox Prospects)