I think this is a great move. He definitely knows how to make an offense score points.
From the time Martz was offensive coordinator in 1999 through 2004 when he was head coach, the Rams sat on top of numerous offensive categories: NFL point differential (+576), scrimmage yards (404.3), points per game (27.6), yards per play (8.14), completion percentage (64.9) and yards per touch (8.4). Over that time period, St. Louis placed second in third-down conversions per game (44.6) and placed third in percentage of first downs rushing (24.8). The Rams also placed first in plays of 20+ yards from 2002-04.