托福写作大佬帮忙看看一句话

我用剑桥的write&improve检查发现这句话有问题，但又不知道问题在哪，希望大家指正！
In sum,although the ability to communicate is really important for a successful leader,I argue that some other abilities,such as the abilities to learn,plan and organize,are also of great importance to a successful leader.

个人意见，仅供参考。

重复使用:
1) “important for a successful leader” 和 “of great importance to a successful leader”，
2) "some other abilities, such as the abilities "
显得雷同