Naveen, your striker should be the best free kick specialist. 3-4 matches not scoring is ok. Maybe it was just bad luck. Quality tends to get the upper hand in this game and eventually will start to shine. The trick behind your striker taking the free kicks is that he will get a lot of MoM awards which will keep him high in the 7 star league or even pump him up to 8 star. Unless of course you have another brilliant free kick specialist.

Can you show a pic of your squad with some numbers maybe and the formation?