I liked Rogers a lot, especially when he wasn't confined to the traditional closer role. That said, if getting the Paddack we saw last night (he was pretty good at KC, too), it is probably worth it to make the trade.
Losing Rogers leaves a hole in the bullpen, however. I think, to be competitive, the Twins need to add two quality arms for late-inning leverage and at least one of them should be a lefty. If it requires a prospect, so be it. The bullpen, as put together now, isn't good enough.