Reports I've read suggest Severino likely wouldn't be much of a defensive upgrade from Julien at 2B
Yeah, was recruited as a SS. Played more 2B and 3B this year with a little bit of DH. With his size, I bet he ends up at 1B.
My point was more about the overall depth. If Polanco is expendable because you have Julien, then you could say Julien is is expendable because you have Severino. Julian or Severino might not be the best options (Lee probably would be), but if you trade Julien to get Mitch Keller (for example) and Lee is needed in CF, Severino is probably still a decent option. They have a lot of possibilities for sure.