This is how i view support role.
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Proof that you can have big impact as supports.
Me as 5.5k supporting sub 4.8k teammates.
http://www.dotabuff.com/matches/843911026Supporting sub 5.0k teammates, its a loss but still close. Sniped courier twice in this game.
http://www.dotabuff.com/matches/843501413See my death count compared to my supporting partner. I don't think i can learn map awareness by playing only support role. Playing tinker and meepo helps a lot. That's why i tell my support player to play only carry/mid in solo rmm.
When i first started coaching my support player 2 month ago, he was only a 4.2k mmr, his support failed so hard. Now he's closing to 4.7k mmr, and he play support better than some 5k players i met in solo rmm. For me he was the mvp for our team when we participated in online tournament 2 weeks ago. If you look at his dotabuff you might think he's a carry or mid player. Oh btw, i didn't spoon fed him, 90% of his improvement comes from his own homework, attitude, and humility. I only point him the correct way. I won't coach a whining, conceited 4k players.
What i really meant was, do not comment no matter how bad your core players play. Some supports like to give comment like this, "OMFG this fv is noob". If he noob, give him tongkat la, thats the reason support role exist.
I only can blame my self if someone in my team is noob cuz I get queued with noobs = I noob also
Sometimes when you try to help is like...mandarin got a saying "play piano to cow", you advise fell on deaf ears