Yup, the difference is, Pompey didn't have the financial base to cop with those signs while Spurs have, adding the difference in tickets revenue as the White Heart Lane has a capacity of 39,000 while pompey have a mere 20,000 IIRC,
This season in Serie A, Yes, average results. But don't forget that when prandelli took over Fiorentina, they were relegation strugglers. He transformed 'em into a champions league regulars over the years and his ability to bring out the best of his players is amazing. Not mentioning his fine work with Corvino in the transfer market. He also has a better experience when it comes to Europe competitions, Topped his CL group this season with big names like Liverpool (Europa League semi-finalists) and Lyon (CL semi-finalists) and got eliminated by the worst refereeing in the champions league this season against another CL semi-finalists.
I thought he's the one who represents the new era of Italian football.