It's worth being honest that the Security Council often throws peacekeeping missions at crises without a completely clear strategy, and it is often incumbent on UN officials on the ground to work out what is possible once they are deployed. In the Central African Republic, or indeed in Mali, the UN went in with a sense of urgency, and then it took some time to develop a political plan.
The Security Council could be more responsive in asking for peace operations more flexibly than it currently does. The Security Council is a heavily overburdened organization running multiple missions.
As Ameerah Haq mentioned, there is also a strong recognition that the UN needs to invest more and get more help from friendly countries like Canada in terms of analysis and information about the countries it's going into. This would enable it to develop its political strategies more credibly and more rapidly.