Denver waived rookie punt returner Isaiah Burse.
McManus' 69 percent field-goal conversion rate prompted the switch to Barth, who was 5 for 5 on field goals in a 29-16 win at Kansas City.
However, none of his eight kickoffs went for touchbacks on a frigid, windy night at Arrowhead Stadium and the Chiefs' average starting position on those kickoffs was their 33.
McManus had 48 touchbacks in 64 kickoffs (75 percent) this season. Barth is just 11 for 164 in his career.
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