Oh got itYou're wrong again. As I've explained to you multiple times, Ko Kieft played the U-TE position, which is mainly a blocking TE, while BSF played the Y-TE position, a more all-around TE, who typically catches more passes.
It was Nick Kallerup who could not supplant Ko Kieft because he was the back-up at the U-TE position, not BSF.
This season Nick Kallerup is the main guy at the U-TE, while BSF continues to man his Y-TE position.