I suggest actually reading the content. 'Effective communication could.' is a complete sentence, and concludes the information presented in the paragraph (the actual word that means groups of sentences relating a concept, which section but vaguely does) it ends.
One takeaway from this is that OP is right about communication skills being important.
I read it all.
I certainly didn't mean to sound rude in my comment, and I apologize if that's the case, though regardless, I think @arbitrarykitten and I have a friendly enough relationship that if my tone came across impolitely, she'd forgive me.
Ends without a period, firstly, so you'll excuse me for perceiving it as an incomplete sentence. Furthermore, no. I'll wait for the OP to respond, but I don't think that was intended to be the whole thought.
Fair point Guv'nor!