Agreed, he has not been up to scratch recently which is a shame because in that attacking midfield role he really made us tick off the bench in some games last season & even the Burnley game earlier this.
I think I'd prefer to see Sarmiento off the bench based on recent performances.
To be fair, I imagine there would be a bit more fanfare if he was joining with immediate effect, as opposed to in the Summer. He's effectively a Summer signing given the terms of the deal. Looking forward to seeing him play.