These assets you refer to are the responsibility of the committee, given that they have asset ownership rights over these assets.
I feel like we need a larger committee than 11, we've got 27 witnesses so why is 11 ok? I'd hope that a larger committee size would lead to greater community involvement.
In terms of Bitshares leadership, this is a DEX not a CEX, you need to take action yourself to engage with elected Bitshares roles and active workers.