Someone has signed up to a sub-contract where they have no idea as to the quality standards and an open ended LAD commitment.
Such people have no right to stay in business.
The main rule is read everything before you sign it.
Don't complain afterwards.
The main purpose of a Back to Back contract is to ensure that the main contract in its real real sense is implemented thru a subcontractor. In other words the the Contractor does not want to give a chance to the subcontractor to slip away from the responsibilities and more over the responsibilities are shared equally. In a back to back contract the issue is mostly related to warrantees/Guarantees, LD due to delays etc where in normal case the subcontractor always escape without a penny lost from his pocket and the Contractor has to bear the brunt. However, in a back to back case the subcontractor is not relieved of his responsibilities and shall have to full fill his obligations.