BTW, I am not trying to be a dick here...
And I agree the DL class is loaded, but so is the OG/C class with some great value in rounds 3 & 4.
And i think they need a vet DT... A 26 yr old 2nd contract type who is emerging and there is a good DT FA class out there.
You stated it takes time to develop an OL. Well they took their lumps this year doing that so I think it should expected that they will take that big step next year.
Look at it this way. The line that played those last 6-7 games never played together before that in that configuration. Imagine how much better they will be when they spend a camp together with the experience that they have gained.
Now sure if you can add a vet to the group, great... Particularly a vet C would be outstanding, but I do not go spend for a frontline top paid guy at OG when they have so many options at OG and the D is so short-handed right now.
Watching this Niner game should make it clear that DL/LB is the top need for 2020.