It's just my opinion but I felt he made Spurs one of the most exciting teams to watch in the premier league during his tenure.
Kane came into his own and became world class under his touteledge. He also got a tune out of Delle Ali who genuinely became one of the best attacking mids in English football before he lost his way.
Not really for me.
14-15 Mourinho's Chelsea despite being a typical Mourinho team was still more exciting when Poch's Spurs still finding their feet.
15-16 Leicester was more exciting in the first half of the season, and yet Man City was the best team in this period until Pep arrival announcement mid season. Spurs only had a short period where they were the only team most likely give Leicester a chase that can be said to be exciting this season. Still Leicester held themselves under pressure, and showed a champion resilient grinding out result pragmatically, while Spurs eventually fell apart and finished third in a two horse race.
16-17 Spurs ended the season with least conceded goal and highest scoring team, but most exciting team they're not. It's all the media hype since the league had become much more competitive with all the Conte, Mourinho, Klopp, Pep having full season. Conte Chelsea walked the league always maintained a comfortable distance with Poch Spurs not really in position to challenge them. The hype about Poch's Spurs at this time is that they have a young team that already in high position, a bit more development and investment might have this team as a champion team. That later did not happen. Poch's Spurs even at their best was forever stuck in the level behind the very best of their time.
17-18 Pep Man City was dominating in the league, but Klopp Liverpool in the second half was rising rapidly to the very top level. Poch's Spurs was even comfortably behind our Mourinho team, which started to imploded in the second half of the season.
18-19 Poch Spurs had a very good start of the season, but they're completely overshadowed by City and Liverpool. On the second half of the season, Spurs was woeful. The way they crawled over the line to get top 4 is comparable to Ole getting third place with 66 points. It's more about the competitor having bad season than they did well. Strangely enough, they made CL final this season, with all their struggling league form. However, they're clearly not the most exciting team in CL. Ajax was a dark horse. Liverpool and City were most exciting teams. Dele already dropped off the cliff during this season under Poch.
19-20 The only exciting thing about Poch Spurs was ironically their transfer dealing. The hype about their signings was that with these new signings, they could recover their league form, while now having the required experience in CL to have final push for trophies. Then few months in Poch got sacked, while Spurs continued their decline of previous season...
So overall, if we can objectively focus on the football, and result alone, Poch's Spurs was never the most exciting team in PL. They were for a period consistently in top 4, but that was nothing new since Wenger Arsenal had previously had a longer period with same vibe: young team that finish in top 4 on shoestring budget; may require a few signings to challenge (when they money get spent however thing fall apart ironically).
Kane may feel grateful for having Poch during those years. However, the older Kane grows, the more these two tend to drift apart naturally. Kane can't sustain Poch's pressing style demand, especially Poch was not able to get a back up for him,a new rotate to keep him fresh. Kane unlocked another dimension to his game under Mourinho. Kane winning nothing so far would really take its toll on him. He may have no room to improve, while may as well be on decline, and Spurs unlikely be able to compete even with Conte.
Dele already dropped off the cliff in 18-19 under Poch if not earlier. His best role is a second forward behind Kane. As Spurs midfield weakened, Dele was tasked with more responsibilities and he failed to live up to it.
Poch earned himself the PSG job, but he really needs to prove himself that he can progress to the elite level. His Spurs "potential" hype is waning fast.