I can tell you a bit of my scenario. I came to Canada from the USA based on an intra company transfer under NAFTA senior manager category. I am still under this category. Now I was qualified to enter the EE pool but my CRS points was no way sufficient for me to be invited in the short term to apply for PR under the EE-FSW category directly. My score was less than 400 and the invitation to PR was going to those having a score of well north of 400 points. I can get to this score range but I needed to gain at least 1 year Canadian work experience and even at this point nothing was guaranteed since the laws can change at any time for better or for worse. Therefore, I was looking for a way to apply within the short term (in the next 2-3 months).
My employer branch is in BC so I started looking into the PNP category. Based on my calculation of BC points I knew that I would receive an ITA from BC but was not sure of securing the nomination based on personal situation and wording in BC guide. My BC score was over 130 so I was guaranteed a BC ITA in the next round. This nomination would secure me another 600 points and would basically guarantee an ITA from the EE-PNP draw. So I proceeded down this path.
I indicated my intent to BC that I would like to apply under the EEBC-SW stream. From indicating my intent to BC ITA to BC application to nomination took me about 4 weeks. So now I had secured 600 additional points which brought my EE CRS points to just below 1,000. Based on previous drawings, I felt very confident that I would receive an ITA and I did in the next drawing. Fast forward to today and I have submitted my application for PR under the EE PNP category. From all reading the EE PNP takes a little longer than applying directly however I would have not been able to secure an ITA directly immediately.
Bottom line is you need to research more and see which programs you quality for. In my case, I have submitted my PR application 4 months after being issues the intra company work permit. CIC website says that the processing time for most applications in this category is less than 6 months. Now it can take longer but I'm hoping that it takes less than 6 months. Assuming that the CIC part takes 6 months then I would have converted my intra company work permit to PR in 10 months but this is still ongoing (just to give you my possible timeline - everybody case is different so timeline will vary). If you can then you should apply on the EE route as it's normally takes less time than the paper route.
Good luck.