Giolito had a bit of shine for a while, but he's had two straight years of YUCK. If they are signing him he'd be another 5th starter, but with more upside. He would probably be an overpaid 5th starter though. His peripherals aren't great either.
Flaherty is probably a much cheaper option than Giolito, but you have to go even further back to find him being productive. He COULD be better than Kutter, but I think I'd rather just use money spent on Flaherty towards the top of the rotation instead.
Just get two really good to great pitchers please.