re·group 
(rē-grp)
(rē-grp)v. re·grouped, re·group·ing, re·groups
v.tr.
1. To arrange in a new grouping.
2. To put back together in a tactical formation, as after a dispersal in a retreat.
v.intr.
1. To come together again in a group.
2. To come back together in a tactical formation, as after a dispersal in a retreat.
3.
a. To reorganize for renewed effort, as after a temporary setback.
b. To recollect one's composure and focus for a renewed effort: The pitcher regrouped and struck out the side in the next inning.