USSF D2 Power Rankings - Week 5

It is time again to visit the USSF D2 Power Ranking (tracking all matches through 5/12). Rochester jumps into the #2 position, as most of the league stays relatively static. (W-D-L)

1. Portland Timbers (3-1-0) (Last Week: 1) - Can't drop the leaders even on an idle weekend.
2. Rochester Rhinos (3-2-1) (Last Week: 4) - Only team in last week's top 4 to get a W.
3. Austin Aztex (3-1-1) (Last Week: 2) - Managed a road draw in front of a tough Tampa Bay crowd.
4. Vancouver Whitecaps (2-2-1) (Last week: 3) - A draw at home against Baltimore is almost a loss for Vancouver.
5. Puerto Rico Islanders (2-0-1) (Last Week: 5) - Not in action, no movement.
6. Montreal Impact (2-1-1-) (Last Week: 6) - Almost jumped the Islanders, but they have only 1 point more than Puerto Rico in one more game.
7. Carolina Railhawks (1-2-1) (Last Week: 7) - Another road draw and the Railhawks return home this weekend.
8. Tampa Bay Rowdies (1-2-1) (Last Week: 9) - After a great home opening, sadly the Rowdies play their next three games on the road.
9. Miami FC (0-4-0) (Last Week: 10) - Still cannot find the win column, but are also finding a way to take a point each time out.
10. NSC Minnesota (2-0-5) (Last Week: 8) - Two straight weeks of falling in the power rankings, Minnesota has the most goals allowed the season so far.
11. Crystal Palace Baltimore (0-1-3) (Last Week: 12) - Baltimore final get their first point of the year and have a better goal difference than St. Louis.
12. AC St. Louis (1-0-5) (Last Week: 11) - The win last week was nice, but 3 points in 6 games is not acceptable.

What are your thoughts on the current power rankings? What changes would you make?