YES!
Although I'm a huge Marco fan, and I've wanted him on the 25 man roster for a long time, I've been hesitant about calling for him to take Pablo's job away.
You're right: he's not a 3Bman. He's trying his best, but we shouldn't get down on him for being forced to play out of position. We should also realize that, as of right now, he's no better on defense than the 2015 and 2017 Pablo showed us.