It took 15 years to overturn Calvin Burdine's death sentence, but at last, in 2001, the federal appeals court in New Orleans accepted a defendant's right to an attorney who remains awake at trial. It now seems odd that there should ever have been any doubt that a sleeping attorney cannot provide the effective counsel guaranteed by the Constitution. But at least there was always a chance that Burdine's attorney, Joe Cannon, would suddenly open his eyes and shout "Objection!" When Kevin Daigle goes on trial for his life, however, he knows there is no chance his attorney, David Price, will participate in proceedings. After Price died last month, Daigle sought more time to prepare for trial, but prosecutors objected and state Judge Guy Bradberry ordered that it take place as scheduled Sept. 18. Daigle, of Lake Charles, is accused of murdering state trooper Steven Vincent 2 years ago. Daigle, then 54, allegedly opened fired when his truck got stuck i