I think Thielbar is washed. I know its still early, but it just looks like his stuff isn't there at all anymore. This race is going to go into September, IYAM and if Thielbar's pitching now and costing the Twins' games, they'll loom just as large when the season's over. But, between his history with the organization and standing in the clubhouse, I'd be shocked if they let him go.
Never understood or liked the Jackson signing. Would have just preferred for them to give Alcala the opportunity and let him run with it. But the front office isn't likely to admit the mistake so early on in the season.
And that's the same with Margot. DFA him and keep Miranda and Martin up with the big club. But again, admitting mistakes in April / May - doesn't seem to the MO of this front office. In fairness, the Twins aren't alone in holding onto vets for too long.