We need to group?
I preface this by stating I am low level Silver this season. So, lately whenever things seem to be going awry, my team's course of action is to always spam "GROUP UP!" The problem is, this is often times counterintuitive to many of the characters that I play i.e. Shaco, Quinn, Tryndamere. Also, I find myself being forced to group up as adcs such as Cait, are often trying to backdoor--with no wards mind you--and I am forced to fall in line with the team to make up for the lack of an ADC. Unfortunately, when playing a character such as Shaco or Trynd this is especially difficult because I feel completely useless in team fights or at least not nearly as effective.
Is grouping as characters that are primary split pushers effective at all? How can I communicate my intentions to my team without being thought of as not cooperating/communicating etc.