Maria Taylor will host "Countdown" on ESPN on Fridays and Sundays in studio, while Rachel Nichols' daily show "The Jump" will be on site for ABC's Saturday showcase games.
ESPN chose not to retain Michelle Beadle as host of "Countdown" and the two sides are negotiating a buyout.
"The Jump" has the inside track to be the lead-in show to The Finals, but the format for that portion of ABC's schedule haven't been finalized.
Stephen A. Smith could lead an expanded "Sports Center" for ESPN's Wednesday night slate.
Jalen Rose is expected to remain on "Countdown" but Paul Pierce may be shifted to another role.