I would have outrighted Klein in the offseason, if not sooner. Not worth protecting on the 40-man roster. Pena is a second baseman with no pop in his bat.
It is essentially Hoffman for Hill. Hill has a career 6.5 BB per 9 and has been worse this season at 7.4. Who knows if he can put it together before he becomes Rule 5 eligible in 2028.