baba.py

# -*- coding: utf-8 -*-
import random

TEAMS = 3
PLAYERS_BY_TEAM = 6

groups = {
    'star':     ['Bako', 'JP', 'Vitot', 'Bruno'],
    'ataque':  ['Genê', 'André', 'Lucas Carvalho', 'Ladeia'],
    'zaga':    ['Rabello', 'Tupy', 'Marcinho', 'Pezão', 'Gustavo'],
    'lateral': ['Flavio', 'Ina', 'Frodinho'],
    'meia':    ['Corcel', 'Marcos Goes'],
}

# Randomize
for k, v in groups.iteritems():
    random.shuffle(v)

teams = {i:[] for i in range(TEAMS)}
while len(groups) > 0:
    for i in range(TEAMS):
        for k in groups.keys():
            players = groups[k]
            if players: teams[i].append(players.pop(0))
            else: del groups[k]
            if len(teams[i]) >= PLAYERS_BY_TEAM:
                break

for i, team in teams.iteritems():
    print('Team %d: %s' % (i+1, ', '.join(team)))