NFL teams generally rely upon rookies at their peril.
The Seattle Seahawks and San Francisco 49ers used rookie punt returners in Week 2. Seattle's Walter Thurmond fumbled. San Francisco's Phillip Adams muffed a punt in windy conditions at Candlestick Park.
A look at each NFC West team's rookie draft choices this season:
Arizona Cardinals: Most of the Arizona Cardinals' defense had problems in run defense against Atlanta in Week 2. Rookie nose tackle Dan Williams was no exception. I did not focus on him for the full game, but the Falcons pushed around Williams and veteran nose tackle Bryan Robinson, among others, early in their 41-7 victory.
2010 NFL Draft: Arizona Cardinals Update
St. Louis Rams: The Rams like what they've seen from rookie quarterback Sam Bradford. Rookie left tackle Rodger Saffold had some problems against Oakland. He's dealing with back trouble and had to come out of the game briefly.
2010 NFL Draft: St. Louis Rams Update
2010 NFL Draft: San Francisco 49ers Update
Seattle Seahawks: Losing first-round rookie left tackle Russell Okung indefinitely hasn't hurt Seattle as badly as I might have expected. Golden Tate's emergence in Week 2 was a very good sign for Seattle, affirming what we saw from him during minicamps and early in training camp.