According to blizz as of this morning
"Please be aware that with this week’s maintenance, purchasing arena season 3 items that have a required arena personal rating will now also require the purchaser’s arena team rating to be at the same point values as well. "
WoW Forums -> Arena Season 3 update
So basically now instead of getting an alt to tank to 1000 team rating then building your personal up yourself to 1850 your going to need to have that alt tank it then YOU build your personal rating to 1850 or 2000 agenst low rated teams then drop you alts and hire 2 good players to come in and get your team to 2000 ratings
weather a buyer or builder be there ya go a new way around new limitations
don't work harder work smarter