A good tip from the freddie wilde book, as an offie if you are under the cosh, set a deep point and bowl short and wide outside the off stump, effectively giving the batter a single.
I don't really see this. Going short and wide, you're basically giving up on taking a wicket. Bowled, lbw, stumped are all impossible, and getting an edge or a mishit shot in the air is extremely unlikely, compared to, say, bowling full and getting the batsman driving.
So you're giving up on wickets and just looking to contain at 6 an over. But even with the best sweeper in the world, some balls are going to go to either side and the batsman can run 2. So its more likely to be 8-9 runs per over.
Maybe in a high-scoring pro T20 game, a spell of 4 overs, 0-32 might be considered a success, but I can't imagine in scenario in amateur cricket where that would be the case.
Bowling a full length outside off with a 5-4 field, incl a sweeper and a long off is a better idea - at least then you have a chance of beating the bat and getting some dot balls.