Simplify the following text for a Grade 7 native English-speaking person.
Original: Matt Leinart was again given the starting quarterback job at the start of the 2007 season . But in the third game of the season , against the Baltimore Ravens , Warner came off the bench to relieve an ineffective Leinart during the 4th quarter with the Ravens leading 23 -- 6 at the beginning of the period .
Simplified: In the third game of the 2007 season against the Baltimore Ravens , Warner came off the bench because Leinart was again not playing well .