Confident or Over-confident?

Taking advantage of Janet's name and fame, Wilson smugly watched the cops who were going to detain Alvin Matthews. He had two plans to trap Alvin and he was delighted that the first plan worked out.

Considering Alvin's anger and Janet's anxiety, Janet's tendency to go extreme, and Alvin's dominance to stay ten steps ahead, Wilson was more than certain that Alvin would keep an eye on Janet. Hence he devised the plan accordingly.

On the previous day, after meeting the CEO of Starlight to arrange a press conference, Wilson went straight to see the deputy chief of police. 

He had complained as there was a stalker who was constantly keeping an eye on Janet and that was frightening both of them. 

Yes, his plan was similar to manager Claire's. Claire wanted Janet to be a victim of Gianna and Casper but they wouldn't have gotten anything in return.