Not an easy first start for him given the heavy rain and the quality of the Miami defence.
He showed his quick release, ability to navigate the pocket, willingness to throw into tight windows, and prowess dealing with pressure. I liked what I saw. It was a solid yet unspectacular performance. No big mistakes or turnovers, which is great. It's something to build off of so it's hard to be displeased.
At the end of the day, however, the QB doesn't matter much when you're playing Fisherball. All you need is a competent game manager. Keenum proved he can't even be that. But as long as Fisher is here it's hard to justify giving up picks to draft a QB #1 overall...