I always thought the ninth hole would be better without an elevated tee. And so there are going to build another tee box down to the right.
From Golfweek:
"The ninth is one of several holes that will undergo architectural changes beginning later this year.
In the U.S. Open, the hole will play its full length only when a back-right hole location is used, Davis said. A new tee will be built for the hole, which plays downhill across a deep valley. The new tee, which will play about 175 yards, will be right of and below the current one, causing the hole to play either level or slightly uphill.
And some much needed changes to the first hole:
"The area short and right of the first green, where approach shots are supposed to land, will be softened to keep shots from rolling across the green and down a large swale left of the green. The basin left of the green, intended to catch shots that barely roll through the green, will be deepened to prevent shots that trickle off the green from rolling all the way down the hill and as far as 70 yards from the green.
Also, a new tee on the first hole will allow the hole to play as a short par 5. It currently is a par 4. The 18th hole was switched between a par 4 and par 5 at the Amateur, though Davis said he’s unsure if he’ll do the same at the Open. A pot bunker will be placed in the middle of the 18th fairway, about 100 yards from the green, to make the layup more difficult.
Modifications to the uphill, par-4 seventh will soften the slope in front of the green, keeping balls from rolling down the hill fronting the green. Davis said some approach shots that landed short of the green rolled 170 yards from the putting surface. The green will be lowered and deepened to make it more accepting to approach shots. The green at the 13th also will be deepened, as it will play as a par 4 for championship play (it is a par 5 for daily play).
A new tee will extend the 521-yard, par-4 14th hole about 20 yards to bring the bunker left of the fairway into play. The hole plays extremely downhill and doglegs left around the bunker.
Also, Davis has decided that the secondary green on the par-4 fifth, which allows the downhill hole to play as a drivable par 4, will not be used in the U.S. Open. It will play as a 490-yard par 4 instead. "
http://www.golfweek.com/news/2011/aug/21/erin-hills-chambers-bay-give-usga-advance-look/I guess the USGA will be providing the money to make these changes.