That's just as well, because the Celtic manager is about to face one of the biggest of his career – and it is one he has created for himself.
The international hiatus from which his players are just emerging has prevented the Hoops boss from having the opportunity to integrate his new players to the squad he has been painstakingly building over the past two years.
When he does get them all back and together over the next few days, the reality will undoubtedly hit Lennon square in the face.
The squad may be smaller, due to some prudent pruning in the transfer window which closed two weeks ago.
But where there were numbers and ballast, there is now quality.
And, while that undoubtedly delights Lennon, it raises the serious question: What is his best starting XI?
It was something which he admitted he struggled to answer even before the comings and goings of this summer's window.
Lennon has already used 24 players in the opening eight games.
Now, with the arrival of Efe Ambrose, Lassad Nouioui and Miku, it is even more of a conundrum.
Factor in the emergence of youngsters such as Tony Watt and Filip Twardzik, who have not looked out of place or their depth in any of the games they have played in pre-season or since the campaign kicked off, and the options open to Lennon increase even more.
If you asked a room full of people to give their starting XI, chances are the answers would be as varied and many fold as the manager's choices.
Only Fraser Forster could be expected to appear on everyone's list. After that, there are options, both in terms of personnel and systems, which start to make it a real challenge.
And it is only going to get even more problematic when the players currently removed from the equation through injury return.
The experiment to play with three at the back in the opening two SPL games, pushing the recognised full-backs forward in wide areas, did not work well as both Aberdeen and Ross County countered it well by deploying midfielders to snuff out this threat.
Lennon may believe he wants to persevere with it, domestically at least, not least because it allows him to keep three of Ambrose, Kelvin Wilson, Charlie Mulgrew and Thomas Rogne in his line-up.
It is widely accepted that Adam Matthews and Emilio Izaguirre will start, either as conventional full-backs, or wing-backs.
But then the really tricky area is reached. Who plays in midfield?
Captain Scott Brown, when free from his hip problem, must be a shoo-in. Joe Ledley – probably Lennon's most consistent signing – is entitled to think he is also worthy of inclusion.
Beram Kayal struggled to maintain the form he showed when he first settled into the team, but is now looking like the player Lennon knows he can be.
But the emergence of Victor Wanyama as the best and most important outfield player the team currently has puts real pressure on Lennon to accommodate everyone he wants on the field.
That's before he even starts to consider who plays wide. James Forrest would be the first outfield player on Lennon's teamsheet, given what he gives to the side and the crowd.
However, Kris Commons' form has been such this season that it would be very difficult to drop him.
Then there is the great enigma himself, Georgios Samaras, who has become the turn-to man in the big games, including Europe.
When he recovers from his elbow injury, Lennon will want him back in situ, either wide left or at the point of the attack.
Up front is an area where invention in selection could be a real feature. Gary Hooper remains the No.1 striker, his goals in the past two seasons alone meriting him that position.
With Anthony Stokes out for another couple of months, Watt has taken his chance to show he must be considered more than just a lad with potential.
But Nouioui brings vast experience – and height – to the party, and is another signing Lennon will want to capitalise on.
Miku is another who has not come to Glasgow to take in the sights. The Venezuelan wants to play during his loan spell, and brings with him attacking qualities which Lennon has long-since identified his side lacked.
Selecting a bench, and explaining to a clutch of players – many of them full internationals, like Paddy McCourt and Mikael Lustig – that they remain valued, but not required that particular day, will be another taxing issue for the boss.
For SPL matches, the requirement to include youngsters will add to the degree of difficulty.
It could be that the solution is to have two teams, one for domestic games, with the biggest guns deployed in the Champions League matches.
However, there would still have to be a bleed over between line-ups, and that in itself leads to potential complications with lack of continuity.
It also must be remembered that the No.1 priority remains the SPL title – and the single spot available for the three qualification rounds for next season's lucrative Champions League.
A glimpse of Lennon's thinking will be given on Saturday when he names his team to face St Johnstone, though the casualty list and the fact the new boys have had little if any time to integrate will skew this somewhat.
Next Wednesday's opening Champions League game against Benfica may give a bigger clue to the manager's plans for the next few months.
But until that line-up is announced – and probably for some time to come – the guessing game will continue.
And no-one will be more interested in the answers than the players themselves.