The IRBMs are a huge problem. IRGC is using them sparingly, but they were not destroyed.
USAF has actually failed when it comes to 'scud hunt'. It doesn't have the combat ISR or strike capability it needs. As a result, the US basing and resupply situation is chaotic. The loss of the THAAD battery is extremely problematic, which is why they had to move one from SK.
The OWD capability allows Iran to attack tankers anywhere in the Gulf. Even with a surge in GCC state IAMD capability, ships cannot be protected. The failure to address this capability in planning was critical.
Obviously the DoD leadership is cowed by Hegseth and wouldn't give a true assessment, so we have a lions led by donkeys situation, but the operational plan was still bad.