Izithombo zeTBR zikhona imibuzo enkulu emahhula ngoba zihlala ukuthi zidinge ukusetyenziswa kwisebe esikhathalekileyo sokuthi besele ubulawo lomsebenzi. Izithombo zeTBR azifundiselela obulawo besele ubudinga ukusetshenziswa. Zingabhedwe ukuthi zidinga ukusetshenziswa kusebentiso sasendaweni futhi ukudibanisa okuhlinzekelayo, lokhu kuvumela ukuthi umbuyeli ufune ukufunda ukuphila kwezinto ezidingayo kwezithombo zeTBR nezithombo eziphawuliwe kunye nokukhetha okuningi lokhu olungileyo.