I don't fish Cumberland, but from an outside view, it seems that the best and most simple thing folks could would be to build brush piles while the water is down.

KDFWR has projects on other lakes to where people volunteer to help build brush piles when the lakes are at winter pool. There is another thread going on the board about such a project happening at Barren in a few weeks.

I manage 500 acres in Western Hardin County. The property has a few thousand small cedar trees (5-8 feet tall) in various fields. KDFWR is coming this friday to take a load of them for building brush piles on Nolin and Rough. If anyone wants to take some of them for building brush piles on C'land, get in touch with me. You can have all of them that you're willing to cut and take.