how many members do toi need in a squad in any Naruto series

explain please

well..........Squads were formed on the basis of complementary fighting styles ou skill sets. naruto's squad was formed par adding in Saske (to balance the immensely powerful but relatively unskilled Naruto) and Sakura was brought in because she was highly intelligent and there was a romantic triangle angle in the trio that would encourage all of them to excel (in an attempt to gain the attention of the object of their affection). The 2:1 ratio was not uncommon, but was not universal, either. It's likely that the ratio of Ninja in leaf village (and possibly others) was close to 2:1, as well - if this is the case, it would nicely account for the large number of teams which respected the ratio.

like i a dit b4.........each team have a teacher.......a high class jonin to guide them.........this teacher is assighned when they r genin.......it doesnt matter if one of them became joinin in between bcz of his skill...........its like a class.........lots of students in it guided par a teacher.........what will they do if there was a child prodigy in it....who is haut, retour au début class in all the sujects and curricular activities.........do u think the school management will make him their new teacher in that class instead of their real teacher bcz hes is prodigy...........????.......its the same in naruto.........its not just neji.........kakashi tooo became jounin at young age when obito and rin were still chunin guided par yellow flash...........and its not tomato.....its yamato.......by the time Naruto got back,........in sasuke quest mission Naruto and sakura were alonne and Kakashi was injured.........soooo tsunade their hokage assigned yamato as their substitute teacher,,,,,,,,,,and put sai as their 3 replacement for sasuke.......and made the team trio with a new jounin teacher,........and if u didnt know.......naruto is still a genin......even now...when he is still hokage.........but everyone acknowlede his power they made him the new hokage........sooo in short. Naruto shippuden animé other than Akatsuki and anbu they have trio guided par a jounin teacher......i hope this cleared all ur doubts..........he he he he