Not familiar with the rules of geek football, but if Tebow is in on the goal line package, isn't he pretty much guaranteed points?
1. There is no such thing as guaranteed points.
2. That's assuming their "real" QB can get them near goaline.
Tebow would be best used in wildcat type formations. Having him as a gimmick on goaline or kicking units would eventually get read by defenses, or get him killed. Nowhere in that does it equate to FF numbers.
Not unless Sanchez gets injured. Then there can be a real debate about it. To pick Tebow, someone would really have to believe Sanchez gets the boot or gets hurt game one.