...until today. According to the Detroit News, coach Jim Schwartz will reveal the starting QB for the Saturday's game today.
MLive.com - Stafford wants his play in preseason opener to do the talking
DetNews - Stafford excited to play, whether starting or not
FreeP.com - Stafford and Culpepper try to keep it cool
MLive.com - Drills
FreeP.com - Schwartz still not talking about QB playing time
MLive.com - Fantasy value of Lions' quarterbacks undervalued