Yeah I'm not advocating for it, I just think none of us knows. We've got starting depth, it just isn't very reliable. Same as we have 2 LF who are not very good either. If we were to make a trade, our biggest strength is the starting 5. Whether it's better to keep that as the strength rather than using it to improve weaknesses elsewhere is debatable.
If it is a major league deal (as has been reported), then if they carry both Latos and Bolsinger as relievers, there is no room in the bullpen for a second lefty or anyone who potentially impresses in spring training like Barnes, Sparkman or Floyd. Otherwise it means either exposing Bolsinger to waivers, or trading a starter (unless one of the other relievers gets injured / traded).
Fingers crossed it's a minor league deal then a decision doesn't have to be made for a while. Which then gives time for the inevitable injury or loss of form of one or more of the pitching staff to occur, and Latos can then step up to replace whoever that happens to.