Also the potential backup QB options go well beyond those 3. Any number could be available for modest future draft picks between now and the end of August.
I was literally going to post last night after Seattle took Milroe that the Vikings should be calling Seattle about Howell. I'm a big Howell fan; Bienemy tried to get him killed in Washington playing behind that abysmal OL and I don't really care what happened in Seattle.
I think the Vikings struck gold; KOC and McCown will be able to turn Howell into a guy they can feel comfortable turning to in limited spot duty if/when necessary.