Protecting QB.

[Fiji07]

We had a play last friday that my crew was kind of divided on. I'm the HL and the entire play happened away from me on the other sideline. Here is the play as best as I remember.

Down not significant but started at B45. A14(Qb) drops back to throw and throws deep down the middle of the field, where it is intercepted by B33 and returned about 15 to 20 yards on B's sideline, approximately the B30. As HL I was completely away from the play on the other sideline and was watching blocking occurring slightly ahead of B33 and toward the middle of the field. After the play ended the coaches are upset with us because their qb, A14, was double teamed about 20 downfield from where the play ended. All I saw of this was the end result, 2 B players on top of A14 near B's sideline. Could not see hit on video either.

My question is after an interception or fumble and there is a return, how much protection do you provide for the qb of the team that just turned the ball over?