Every coach thinks that. The he good ones know when change philosophy. Remember when Nick Saban hated the spread and only ran HIS defense at Alabama? That was until they started losing games. Now they run a spread offense and a 3-3-5 defense that prioritizes athletic linebackers instead of the big guys he preferred. ****, when Saban got the Dolphins job, he made all pro linebacker Zach Thomas gain 20 pounds because “our linebackers weigh 250”. Losing will humble a proud coach. Nobody cares that Saban changed offenses and dumped his defense because they win.