I am in a 10-team keeper league where we keep a 20-man minor league roster. We are entering our summer draft where previous undrafted players and those recently selected in the MLB draft are available. I am looking at dropping some players to make room to select more. Considering a range of all prospects out there (including players just drafted in the MLB draft) would you consider any of the following players to be in the top 150-200 range? (i.e. I am considering dropping the following players):

Bobby Borchering

Josh Vitters

Anthony Ranaudo

Thanks