In Season 10 , they became co-executive producers , writing nine episodes in all over three seasons .
In 2008 , Thompson and Weddle joined the staff of CSI : Las Vegas mid-way through Season 9 as writers and supervising producers .
In Season 10 , producers became co-executive producers , writing nine episodes in all over three seasons .
In 2008 , Thompson and Weddle joined the staff of CSI : Las Vegas mid-way through Season 9 as writers and supervising producers .