As an observer of this rather than an expert, I think the parliamentary oversight committee in the U.K. has worked okay. I've also testified in front of the U.S. House intelligence committee, and the comparison is quite striking, because the U.S. House intelligence committee literally has dozens of staff, whereas the U.K. parliamentary oversight committee has, I think, four or five staff.
I do not personally think it is possible for a group of 10 politicians to supervise an entire intelligence community with practically no support in the back. On that basis, I think the parliamentary oversight committee in the U.K. is probably a good thing, but it needs to be properly staffed in order to be able to do its job. The staffing is the question, not just the exact form of the committee.