#1: Millwall's best is still to come
As Ian Holloway alluded to after Saturday's win over his former club, Millwall are yet to hit top form this season and their best is still to come.
The Lions "scrapped" their way to three points, Holloway said, instead of ramming home their advantage with the score at 2-0 against what must be said were poor opponents.
Millwall really should have killed the game off and won by three or four but gave Blackpool a glimmer of hope by conceding a sloppy goal on the counter-attack.
Nile Ranger's strike was made even more frustrating by the fact that the Lions were enjoying their most dominant spell of the match when the striker made it 2-1.
It was an uncharacteristic lapse of concentration by Holloway's side and made what should have been an enjoyable final 20 minutes and nervous wait for the final whistle.
Holloway is big on team structure and was furious that, when Shaun Williams attempted an ambitious shot from the edge of the area, eight blue shirts were in front of the ball.
Admittedly it was a fluke rebound that allowed Francis Zoko to collect possession and race downfield, before sliding in Ranger, but Millwall's defending of the situation was poor.
But it says a lot about the side's potential this season that, after five games, the Lions have ten points and yet still there are still some obvious improvements to be made.
#2: That being said…
While there's no doubting the fact that Millwall ought to have won by a greater margin, that they managed to see the job through after Ranger's goal showed great character.
And they also deserve credit for scoring the first goal, something they failed to do whilst they were on top against Rotherham the previous weekend – and were punished for.
The Lions' frustrating tendency to slip up against the lesser sides featured prominently in last Sunday's Five Things We Learned following the 1-0 defeat by the Millers.
Many feared that the visit of rock-bottom Blackpool to The Den would follow a similar script.
So after going ahead through Scott McDonald's first-half opener, it was hugely important that Scott Malone added a second goal to give Holloway's side a bit of breathing space.
Ranger's goal spoiled what was set to be a storming finish.
And Holloway reacted swiftly to the threat of an unlikely Blackpool equaliser by bringing on towering centre back Byron Webster, whose aerial prowess was vital in the last 15 minutes.
Alan Dunne was struggling to win headers against Ranger and so introducing Webster from the bench was a smart move which saw Millwall regain control of their penalty area.
This game was another potential banana skin and though the Lions did things the hard way, they got the job done nevertheless. And that's a step forward from the Rotherham game.
#3: Scott McDonald's best Millwall performance
That was quite some performance by Scott McDonald – and probably his best in a Millwall shirt.
The Australian was subdued in the Lions' previous two Championship matches, against Sheffield Wednesday and Rotherham, but he really turned on the style yesterday.
McDonald, now playing in midfield, caught the eye in the early wins over Leeds and Fulham but his displays were lacking an end product or a telling contribution in the final third.
That all changed against Blackpool as he scored the opening goal before turning provider for Scott Malone with an inch-perfect cross to the far post.
With Holloway opting to play one striker up front, the success of Millwall's season depends on the likes of McDonald scoring and creating on a regular basis.
He's now shown that he can do that in a new position.
The 31-year-old's defensive work was equally impressive – he tracked back and closed the ball down when needed and was prepared to drop deep to win back possession.
You only have to look at McDonald's goalscoring record to know that he is a dangerous player, but for whatever reason he didn't do himself justice last season.
Reinvented as a midfielder and with a spring back his step, the early signs suggest that McDonald's second year as a Lion will be a lot more successful that his first.
#4: Jack Powell passes his Championship test
The standing ovation said it all. Jack Powell's league debut was excellent.
The 20-year-old passed his Championship test with flying colours – literally. He made more passes (54) than any other blue shirt, even though he was subbed with ten minutes to go.
And his pass completion rate of 87% was bettered only by Carlos Edwards' 89%. Powell also played more accurate long ball and made more interceptions than any of his teammates.
That's not forgetting his assist for McDonald's 33rd-minute goal.
Having played 90 minutes against Southampton in midweek, Powell understandably tired against Blackpool and, fitness-wise, he's still adjusting to the demands of senior football.
But his performance will give Holloway a pounding selection headache when the Millwall boss comes to select his starting XI for the trip to Ipswich on September 13.
When the international break is over, Jimmy Abdou, Nicky Bailey and Ed Upson will all be available for selection again, giving Holloway an array of midfield options.
Powell, though, has done everything possible to warrant another start.
#5: Tougher challenges lie ahead
When the season resumes in a fortnight's time, Millwall will take on Ipswich Town and Reading in back-to-back away games before hosting early pace-setters Nottingham Forest.
That trio of fixtures will show just how far the Lions have come under Ian Holloway.
Their three wins so far have been over sides in the middle of crises. Leeds have already sacked their manager, Fulham will soon sack theirs and Blackpool's boss will probably quit.
Holloway has already identified the trip to Portman Road as one of the toughest matches of the season and that is when the going will really get tough for his side.
Millwall are in fantastic shape with ten points in the bank after five games but they now face three Championship heavyweights who will put their strong start to the test.