Leave Tamim, SNafees, Mushfiq off Test team. They are bad influence on others . Move them in T20 or ODI. Shakib is being caught in scoring in hurry. Both Junaid and SN do not have technical ability of a Test top order batsmen. SN plays way too much backfoot while Junaid Siddique cannot handle bouncers.
JS can be used in middle order for time being. Mushfiq lacks performance as a keeper, batsmen and as a leader.