This vet started it and should lead it. How dare you describe him as unable to handle it. His strength is obvious and I’m sure he can get guidance if ever needed from Gary Sinise.
I would assume with these fund raising sites that they write a cheque to the vet. He, in turn, can donate the money to the feds to be deposited to the account they are currently using. It’s a large amount of money, but it doesn’t seem a difficult job. It’s not like he has to become the contractor.