Arguments consist of premises and logical structure. You can't have a good argument without both. Ti provides the logical structure and Te the truth of the premises (objective facts). While anyone can produce good arguments, the type distribution goes something like the following:
Fe-Ti: mainly focuses on objective facts about human (animate) relations, uses logical arguments to back it up
Fi-Te: mainly focuses on rational argument concerning human (animate) feeling, uses objective facts to back it up
Te-Fi: mainly focuses on objective facts about nonhuman (inanimate) organization, uses personal feeling to back it up
Ti-Fe: mainly focuses on rational arguments about nonhuman (inanimate) ideas, uses human relations to back it up.