Not really. I mean if you look at their squad they have plenty of decent fast bowlers (Hasnain, Naseem, Shinwari, Anwar and Steyn) it's just things not working for them. Adding to it Sarfaraz needs to change his tactics, using the best bowlers effectively can help them win the game.
Hasnain and Naseem are good prospects, but they do not have the experience to lead a bowling attack. After years of watching them bowl in the PSL and in national colors, I can safely say that Shinwari and Anwar are way too unreliable to be put in the same spot. Steyn? Well, Steyn is Steyn, but he isn't the Steyn of old. On Twitter yesterday I saw somebody say that in an IPL game last year, Steyn conceded 15+ runs in the penultimate over which led directly to his team's loss? If Wahab Riaz is hitting you for two sixes, one so big it literally lands out of the stadium, in an over that costs 20 runs when all you have are 30 to defend, then I wouldn't exactly say that Steyn is in the form of his life.
The other two bowlers tho - Zahid and Nawaz, they are good but they can't do crap on these flat Karachi wickets, let alone when they are bowling second and having to deal with dew (in all four games Quetta has played). Perhaps they'll be more beneficial in Lahore where there's slight assistance for spinners, but still probably only in the first innings.
Of course the other team came to play as well, and Stirling was incredible last night. He gave Islamabad his best Ronchi impression and from that point the game was done and dusted. But you still gotta have a bowling line that you can be confident in, and sadly, Shinwari/Anwar/Steyn/Naseem/Hasnain/Nawaz/Zahid, as good as they may or can be, do not inspire a world of confidence (right now).