I really feel Thomas Dale has gotten better as the season has progressed. If Dale were to play those two now, they would win.
As for Cosby, they did start strong but early on aside from Thomas Dale they really didn't have any of the better teams on their schedule. Their toughest part of the schedule was the second half and obviously that didn't go so well losing four out of five.
Your assessment of James River is just about right. They like Cosby struggled against the heavyweights of the district such as Bird, Manchester and Monacan. Their only other loss was to Douglas Freeman 13-17 in a game that went right down to the wire. They could have easily been 7-3.