I'd be okay with officials pulling double duty on icing and offsides. Ideally with automatic icing the lineman could initiate and the lead ref would have to make the call. He wouldn't need to go end to end as most times they call it somewhere between blue line and the circle.
As for them being on the way, I often overstate my case. But it is frustrating at times.
Yeah that is about as feasible as it gets, but I'm still not crazy about having fewer eyes on the ice, increasing the likelihood of something going undetected. If this is combined with letting the officials do a quick replay review in the scorer's box (no phone calls etc) for anything they feel they need another look at in order to get the call right, then I like the idea.
To clarify, when I mentioned one linesman skating the full length of the ice, I didn't mean on a particular icing call, I meant in general the territory he would have to skate would be the full length as opposed to with two linesmen, you only go from one corner to just outside the far blue line. Having the far ref act as a linesman when needed could alleviate this as we seem to agree though, although it introduces its own challenges.
One other issue with two refs and one linesman is when scrums occur, do you only have the one linesman try to break things up, or does one of the refs jump in leaving only the other ref to keep an eye out for penalties? Another problem that is easily sorted by a quick look at a replay.
Refs getting in the way certainly is frustrating though, I'm sure most other Devils fans remember the linesman guessing wrong as to which way Anton Volchenkov was about to go in Game 6 against the Kings, inadvertently setting a perfect pick and leading to a goal. I've also been on both sides of this as a player and ref. It's aggravating when your pass up the boards gets picked off by a ref's leg, and it's no fun when you're the ref and you're the reason the play changes direction, not to mention the ensuing welt/bruise/etc. I took a dump-in right to the ear one time. A guy was coming up the boards in the neutral zone, had a teammate wide open he could have sprung for a breakaway, so I anticipated that and got in position to make sure the pass wasn't offside, and instead he opted to dump it up the glass and I just couldn't duck fast enough.