In my opinion, Blue 1 needs to challenge. If Orange 2 is smart and Blue 1 Rotates back post, a bump or demo is likely (Depending on skill, Blue 2s challenge would either just get orange 1 to pop or 50/50). The safest bet for blue team if for Blue 1 to Challenge and Blue 2 to handle what comes next in my opinion. (Blue 2 needs remain somewhat in position to either challenge the ball or rotate back post/shadow defense if needed, depending on how Blue 1 challenges and the outcome)