Some ideas on Channelers and Character dynamic.

[Andreas]

we can limit and generate traits as much as we want, the titles are just generic... Unless you mean ancillary titles, they work as traits.

[Lord Winter]

The failed expedition to capture rand put Semerhage and Greandal on the spot. Semirhage was left having to rely on Sammael and Demondred to distract "ol' Therin" while Greandals effect insid the tower. Meanwhile ol' Belal reborn is having issue getting to Egwene. Without the Wells Fiasco the Forsakens’ motivations would have been efected. With Egwene sick and weakened by the "Treatments" Aran'gar provides, she would have taken more time pursuing he ends, instead of rushing with what time she has.

Only click if you have read KoD

Spoiler Alert, click show to read: 

Semirhage was in the east with the sechaen. at the time and nothing to do rand. Messana was inside the tower while grendeal is somewere in arad doman last time we heard

The four you are thinking of i think are lanfear, grendeal sammaulal and rahvin. Samual was going to draw rand to him and the 4 of them would link and overwhelm him. The D.O. never actulctly issued a direct order for rand to be captured or killed even thou it would have probely set them all above the other forsaken. This was just ploting between the forsaken and before D.W.