While the on-field defections have been many, possibly the largest hole in New England?s chances to capture their third straight Super Bowl came from two off-the-field emigrations; offensive coordinator Charlie Weis, headed to South Bend to revive a floundering Notre Dame program, and defensive coordinator Romeo Crennel, who took his defensive-minded approach to Cleveland as head coach. Both had been instrumental in all three New England Super Bowl victories with their complex arrangements and schemes that played more towards the shortcomings of others than it did play up the Patriots? own strengths, but neither loss should come as a surprise; both coordinators had been heavily coveted for various coaching positions ever since the Patriots? first Super Bowl victory.