I don't know about starters. But overall maybe 1/3 each?

At WR I see Austin, Cooper, Marquez and Spruce among the 6. Britt is TBD.

On the OL I see 2-3 new players. Starting center, a guard, and a swing backup. They missed Reynolds last year IMO and finding an equivalent type of backup OL would be helpful. Barnes should replace Rhaney as the backup C. Not sure Donnal sticks especially if they move Robinson to OG.