User blog comment:Hyperion602/DotA 2 Style Lane Setups/@comment-24022269-20131215004245

My problems with that are

1) Your jungle is not utilized by your team, thus lowering the gains overall.

2) Your jungle is like a free roaming ground for their jungler, and you have to get more wards.  Thus losing some farming time to roam and ward certain spots (not to mention dying while warding) and gold for buying wards constantly.

3) If you are unable to get some kills or harass them hard down bot your bot lane would be at disadvantage too since the exp is now spread to three people instead of two, plus the aggressive roamer, who could have been in another place farming, would be less effective later on and needs more effort to catchup.  You've addressed that a bit but I would like to see some results and more theory into it.

Overall though I see it as more of a problem of efficiency than coordination and execution.

Though in regards to roaming, an idea that might work is to get someone bot to hold mid and get mid to roam to top. That will be a bit limiting on what you can mid with but much easier to bring some relief to top, plus you're already kinda limiting the options in other lanes too, so why not.