I think the defensive issues are pretty clear: we're down to bare bones, but even our best are not great in the air. That needs to change if we are to deal with what we saw from Hibs. Our defence has still been decent enough.
Offensively, we have a good group that can be excellent in transitions - as we saw in the first 25 minutes today and in Europe - but don't have the guile - or set-up - to break down a low block. A new coach could solve it, but I don't see that happening, so a couple of signings is the only solution.