占据政(zhèng )治上(shàng )的主(zhǔ )动,袁(yuán )绍不能(néng )从。建(jiàn )安(ān )四年,曹(cáo )袁争霸,田(tián )丰提出稳打稳(wěn )扎的持久战略,袁(yuán )绍执意南征,不采(cǎi )纳,但(dàn )在曹操东击刘备时,却(què )以(yǐ )儿子生病为由,拒绝田丰(fēng )的奇(qí )袭许都之(zhī )计(jì ),错失良机。官渡之战(zhàn ),田丰再(zài )议据险(xiǎn )固守,分兵抄掠的疲敌(dí )策略,乃至强谏(jiàn ),被袁(yuán )绍以为沮众,械系牢狱。建安五年,袁绍官渡战(zhàn )败,