Despite the obvious media interest in the timing of Saint Andre's decision, the Sharks maintained their focus to move to the top of the Pool 1 standings.
"There would have been no excuses because the news of my announcement did not affect how they played on the pitch," explained Saint Andre after he watched his team run out comfortable 36-6 winners over the Heineken Cup newcomers.
"I tried to be very honest with the guys. We've had five fabulous years but it's not a time to say thank-you yet because I will be here until the last game of the season."
A brace of tries from Argentina's Juan Martin Fernandez Lobbe, followed by second-half scores from Anitele'a Tuilagi, Eifion Lewis-Roberts and David Tait ensured the home side took a maximum five points from the first of their back-to-back encounters with the French Top 14 outfit.
"We won, scored five tries and played some good rugby," added Saint Andre, whose team began their European campaign with a stunning victory at ASM Clermont Auvergne before falling to defeat at home to reigning champions Munster.
"We are still in the competition but next week at Montauban will be a different story.
"However, I was disappointed with the crowd. The guys deserved more than that for such a big Heineken Cup game."