Here are some links that you may find helpful:
http://www.brucepearsonmusic.com/articles/RehearsingTheVeryYoungBand_Pt2.pdf
http://www.tmea.org/assets/pdf/southwestern_musician/CreatingBalanceandBlend-Nov2013.pdf
http://www.theconcertband.com/index.php/band-training/balance-and-blend
http://www.theconcertband.com/index.php/band-training/intonation
http://www.theconcertband.com/index.php/band-training/ear-training
http://www.theconcertband.com/index.php/resources/music-physics/blowing-a-wind-instrument
http://www.theconcertband.com/index.php/resources/conducting/suggestions-for-home