M Tomlin is currently 30 gms over 0.500 for his career.
B Cowher, at the same point in his career, was 26 gms over 0.500.
M Tomlin has a career win % 0.634, Cowher retired with 0.623.
M Tomlin has 71 wins, B Cowher at the same point had 77 wins.
M Tomlin has 2 AFC Championships, B Cowher at the same point had 1.
25% of Cowher's seasons were 0.500 or less. Tomlin is currently at 29% with two non-win seasons.
People like to think Cowher > Tomlin but it looks to me like they are very similar in coaching their teams to wins. Those that claim Tomlin is "winning with B Cowher's players" need also consider B Cowher won with C Noll's players.
Avg yrs experience for players on Cowher's first team: 4.4
Avg yrs experience for players on Tomlin's first team: 4.9