A strength?, compared with what? We are the #23 by ERA and #15 by W-L, plus all the BS. While we have Koji now and is doing a good job, someone has to cover his last role.
On the other hand, I would prefer a SP more, as you do (a good one), but If they land Pap, he will round the BP even more. Both moves would be great, but probably would be too much to ask for.