"There are a lot of things we have to learn from, but it's a lot better to do that after the win," coach Dennis Allen said.
Schaub finished 8 for 13 for 87 yards and looked sharper than he did in last week's loss at Minnesota.
"I felt comfortable," he said. "Got in a little bit of a rhythm offensively with the guys, getting in and out of the huddle and executing some things. It just felt good."
McGloin, who started most of the second half of last season, has fallen to third string after the offseason additions of Schaub and Carr.
"It's tough standing over there for hours," he said. "Unfortunately Derek got hurt. That's a tough situation for any quarterback, coming in in that situation. But it felt good to get in and get some work in."
Two plays later, cornerback Tarell Brown bit on a double move and Tate raced past him to catch a 28-yard score.
Stafford picked apart Oakland's defense in his limited action, completing 9 of 10 passes for 88 yards and capping the second drive when Durham outjumped TJ Carrie for the 4-yard score.
Stafford completed passes to five receivers on three drives before calling it a night.
"Obviously, Calvin wasn't out there today so a lot of guys got opportunities and made the most of them today," Stafford said. "That's what we're looking for this time year."
Backup Dan Orlovsky also had success, going 8 for 12 for 153 yards and leading an 83-yard TD drive to open the second half.
Carr led the Raiders to a field goal on his first drive, throwing a 16-yard pass to Jones on a rollout for the key play.
After stalling on his first drive of the second half, Carr completed all six passes for 76 yards on a touchdown drive capped by a 3-yard pass to Jake Murphy.
But Carr left the game holding his ribs later in the fourth quarter after the hard hit from Larry Webster.
"He's got sore ribs," Allen said. "I don't know exactly what his ribs are but the concussion was why he was out of the game."
Carr went 9 for 16 for 109 yards and looked comfortable in the pocket against Detroit's reserves.
Copyright 2014 by The Associated Press