I don't think you can really improve when at any second you could be removed if your leader doesn't find your improvement good enough. It's not a good environment thinking that every loss could be the one that gets you kicked out of your team/clan, laddering is hard enough for some people without that added pressure. Improvement should be encouraged regardless of the size, especially when in lower leagues where all it takes is a few things to click and someone in silver/gold can jump to high plat/diamond.
Also double standards are a bad way to run a clan/team. Rules should apply to everyone and not be ignored when it is convenient.
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